Home / 1,272,165.60-1,909,123.20-524,211.60

Finding the Fourth Proportional to 1,272,165.60, 1,909,123.20 and 524,211.60

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Solution

The fourth proportional to 1,272,165.60, 1,909,123.20 and 524,211.60 is: 786,677.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,165.60 : 1,909,123.20 = 524,211.60 : x
  2. Step 2: Convert to fraction form
    1,272,165.60/1,909,123.20 = 524,211.60/x
  3. Step 3: Cross multiply
    1,272,165.60x = 1,909,123.20 × 524,211.60
  4. Step 4: Simplify right side
    1,272,165.60x = 1,000,784,527,269.12
  5. Step 5: Solve for x
    x = 1,000,784,527,269.12/1,272,165.60
  6. Step 6: Final answer
    x = 786,677.87

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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.