Home / 643,753,602,225.60-888,339,942,962.91-354,705,686,198.34

Finding the Fourth Proportional to 643,753,602,225.60, 888,339,942,962.91 and 354,705,686,198.34

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Solution

The fourth proportional to 643,753,602,225.60, 888,339,942,962.91 and 354,705,686,198.34 is: 489,471,791,624.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,753,602,225.60 : 888,339,942,962.91 = 354,705,686,198.34 : x
  2. Step 2: Convert to fraction form
    643,753,602,225.60/888,339,942,962.91 = 354,705,686,198.34/x
  3. Step 3: Cross multiply
    643,753,602,225.60x = 888,339,942,962.91 × 354,705,686,198.34
  4. Step 4: Simplify right side
    643,753,602,225.60x = 315,099,229,046,053,254,725,632
  5. Step 5: Solve for x
    x = 315,099,229,046,053,254,725,632/643,753,602,225.60
  6. Step 6: Final answer
    x = 489,471,791,624.44

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.