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Finding the Fourth Proportional to 567,406.62, 783,056.16 and 312,757.20

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Solution

The fourth proportional to 567,406.62, 783,056.16 and 312,757.20 is: 431,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,406.62 : 783,056.16 = 312,757.20 : x
  2. Step 2: Convert to fraction form
    567,406.62/783,056.16 = 312,757.20/x
  3. Step 3: Cross multiply
    567,406.62x = 783,056.16 × 312,757.20
  4. Step 4: Simplify right side
    567,406.62x = 244,906,452,044.35
  5. Step 5: Solve for x
    x = 244,906,452,044.35/567,406.62
  6. Step 6: Final answer
    x = 431,624.24

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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.