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Finding the Fourth Proportional to 607,553.40, 911,330.10 and 572,561.40

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Solution

The fourth proportional to 607,553.40, 911,330.10 and 572,561.40 is: 858,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,553.40 : 911,330.10 = 572,561.40 : x
  2. Step 2: Convert to fraction form
    607,553.40/911,330.10 = 572,561.40/x
  3. Step 3: Cross multiply
    607,553.40x = 911,330.10 × 572,561.40
  4. Step 4: Simplify right side
    607,553.40x = 521,792,437,918.14
  5. Step 5: Solve for x
    x = 521,792,437,918.14/607,553.40
  6. Step 6: Final answer
    x = 858,842.10

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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.