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Finding the Fourth Proportional to 592,445.80, 887,939.70 and 402,905.80

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Solution

The fourth proportional to 592,445.80, 887,939.70 and 402,905.80 is: 603,862.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,445.80 : 887,939.70 = 402,905.80 : x
  2. Step 2: Convert to fraction form
    592,445.80/887,939.70 = 402,905.80/x
  3. Step 3: Cross multiply
    592,445.80x = 887,939.70 × 402,905.80
  4. Step 4: Simplify right side
    592,445.80x = 357,756,055,180.26
  5. Step 5: Solve for x
    x = 357,756,055,180.26/592,445.80
  6. Step 6: Final answer
    x = 603,862.93

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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.