Home / 928,824.72-1,281,654.14-515,354.90

Finding the Fourth Proportional to 928,824.72, 1,281,654.14 and 515,354.90

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Solution

The fourth proportional to 928,824.72, 1,281,654.14 and 515,354.90 is: 711,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,824.72 : 1,281,654.14 = 515,354.90 : x
  2. Step 2: Convert to fraction form
    928,824.72/1,281,654.14 = 515,354.90/x
  3. Step 3: Cross multiply
    928,824.72x = 1,281,654.14 × 515,354.90
  4. Step 4: Simplify right side
    928,824.72x = 660,506,732,169.24
  5. Step 5: Solve for x
    x = 660,506,732,169.24/928,824.72
  6. Step 6: Final answer
    x = 711,120.97

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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.