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Finding the Fourth Proportional to 532,029.60, 798,562.80 and 266,090.40

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Solution

The fourth proportional to 532,029.60, 798,562.80 and 266,090.40 is: 399,394.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,029.60 : 798,562.80 = 266,090.40 : x
  2. Step 2: Convert to fraction form
    532,029.60/798,562.80 = 266,090.40/x
  3. Step 3: Cross multiply
    532,029.60x = 798,562.80 × 266,090.40
  4. Step 4: Simplify right side
    532,029.60x = 212,489,894,877.12
  5. Step 5: Solve for x
    x = 212,489,894,877.12/532,029.60
  6. Step 6: Final answer
    x = 399,394.87

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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.