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Finding the Fourth Proportional to 572,345.55, 789,839.91 and 357,610.14

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Solution

The fourth proportional to 572,345.55, 789,839.91 and 357,610.14 is: 493,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,345.55 : 789,839.91 = 357,610.14 : x
  2. Step 2: Convert to fraction form
    572,345.55/789,839.91 = 357,610.14/x
  3. Step 3: Cross multiply
    572,345.55x = 789,839.91 × 357,610.14
  4. Step 4: Simplify right side
    572,345.55x = 282,454,760,792.69
  5. Step 5: Solve for x
    x = 282,454,760,792.69/572,345.55
  6. Step 6: Final answer
    x = 493,503.90

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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.