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Finding the Fourth Proportional to 572,359.98, 789,859.68 and 357,624.48

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Solution

The fourth proportional to 572,359.98, 789,859.68 and 357,624.48 is: 493,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,359.98 : 789,859.68 = 357,624.48 : x
  2. Step 2: Convert to fraction form
    572,359.98/789,859.68 = 357,624.48/x
  3. Step 3: Cross multiply
    572,359.98x = 789,859.68 × 357,624.48
  4. Step 4: Simplify right side
    572,359.98x = 282,473,157,332.97
  5. Step 5: Solve for x
    x = 282,473,157,332.97/572,359.98
  6. Step 6: Final answer
    x = 493,523.60

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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.