Home / 738,101.70-1,104,200.10-639,358.65

Finding the Fourth Proportional to 738,101.70, 1,104,200.10 and 639,358.65

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Solution

The fourth proportional to 738,101.70, 1,104,200.10 and 639,358.65 is: 956,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,101.70 : 1,104,200.10 = 639,358.65 : x
  2. Step 2: Convert to fraction form
    738,101.70/1,104,200.10 = 639,358.65/x
  3. Step 3: Cross multiply
    738,101.70x = 1,104,200.10 × 639,358.65
  4. Step 4: Simplify right side
    738,101.70x = 705,979,885,265.87
  5. Step 5: Solve for x
    x = 705,979,885,265.87/738,101.70
  6. Step 6: Final answer
    x = 956,480.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.