Home / 923,419.40-1,385,129.10-817,665.80

Finding the Fourth Proportional to 923,419.40, 1,385,129.10 and 817,665.80

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Solution

The fourth proportional to 923,419.40, 1,385,129.10 and 817,665.80 is: 1,226,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,419.40 : 1,385,129.10 = 817,665.80 : x
  2. Step 2: Convert to fraction form
    923,419.40/1,385,129.10 = 817,665.80/x
  3. Step 3: Cross multiply
    923,419.40x = 1,385,129.10 × 817,665.80
  4. Step 4: Simplify right side
    923,419.40x = 1,132,572,693,654.78
  5. Step 5: Solve for x
    x = 1,132,572,693,654.78/923,419.40
  6. Step 6: Final answer
    x = 1,226,498.70

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Double scale
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Similar ratio
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1.5x scale

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.