Home / 945,114.60-1,304,234.46-515,403

Finding the Fourth Proportional to 945,114.60, 1,304,234.46 and 515,403

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Solution

The fourth proportional to 945,114.60, 1,304,234.46 and 515,403 is: 711,243.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,114.60 : 1,304,234.46 = 515,403 : x
  2. Step 2: Convert to fraction form
    945,114.60/1,304,234.46 = 515,403/x
  3. Step 3: Cross multiply
    945,114.60x = 1,304,234.46 × 515,403
  4. Step 4: Simplify right side
    945,114.60x = 672,206,353,387.38
  5. Step 5: Solve for x
    x = 672,206,353,387.38/945,114.60
  6. Step 6: Final answer
    x = 711,243.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.