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Finding the Fourth Proportional to 573,839.07, 859,761.06 and 402,697.80

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Solution

The fourth proportional to 573,839.07, 859,761.06 and 402,697.80 is: 603,346.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,839.07 : 859,761.06 = 402,697.80 : x
  2. Step 2: Convert to fraction form
    573,839.07/859,761.06 = 402,697.80/x
  3. Step 3: Cross multiply
    573,839.07x = 859,761.06 × 402,697.80
  4. Step 4: Simplify right side
    573,839.07x = 346,223,887,387.67
  5. Step 5: Solve for x
    x = 346,223,887,387.67/573,839.07
  6. Step 6: Final answer
    x = 603,346.66

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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.