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Finding the Fourth Proportional to 607,962.64, 838,553.32 and 426,715

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Solution

The fourth proportional to 607,962.64, 838,553.32 and 426,715 is: 588,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,962.64 : 838,553.32 = 426,715 : x
  2. Step 2: Convert to fraction form
    607,962.64/838,553.32 = 426,715/x
  3. Step 3: Cross multiply
    607,962.64x = 838,553.32 × 426,715
  4. Step 4: Simplify right side
    607,962.64x = 357,823,279,943.80
  5. Step 5: Solve for x
    x = 357,823,279,943.80/607,962.64
  6. Step 6: Final answer
    x = 588,561.30

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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.