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Finding the Fourth Proportional to 638,518.54, 880,613.46 and 539,548.02

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Solution

The fourth proportional to 638,518.54, 880,613.46 and 539,548.02 is: 744,118.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,518.54 : 880,613.46 = 539,548.02 : x
  2. Step 2: Convert to fraction form
    638,518.54/880,613.46 = 539,548.02/x
  3. Step 3: Cross multiply
    638,518.54x = 880,613.46 × 539,548.02
  4. Step 4: Simplify right side
    638,518.54x = 475,133,246,112.06
  5. Step 5: Solve for x
    x = 475,133,246,112.06/638,518.54
  6. Step 6: Final answer
    x = 744,118.17

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1.5x scale

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.