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Finding the Fourth Proportional to 541,985.60, 812,978.40 and 511,572.80

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Solution

The fourth proportional to 541,985.60, 812,978.40 and 511,572.80 is: 767,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,985.60 : 812,978.40 = 511,572.80 : x
  2. Step 2: Convert to fraction form
    541,985.60/812,978.40 = 511,572.80/x
  3. Step 3: Cross multiply
    541,985.60x = 812,978.40 × 511,572.80
  4. Step 4: Simplify right side
    541,985.60x = 415,897,636,427.52
  5. Step 5: Solve for x
    x = 415,897,636,427.52/541,985.60
  6. Step 6: Final answer
    x = 767,359.20

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Similar ratio
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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.