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Finding the Fourth Proportional to 566,672.12, 782,024.73 and 312,032.42

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Solution

The fourth proportional to 566,672.12, 782,024.73 and 312,032.42 is: 430,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,672.12 : 782,024.73 = 312,032.42 : x
  2. Step 2: Convert to fraction form
    566,672.12/782,024.73 = 312,032.42/x
  3. Step 3: Cross multiply
    566,672.12x = 782,024.73 × 312,032.42
  4. Step 4: Simplify right side
    566,672.12x = 244,017,069,001.75
  5. Step 5: Solve for x
    x = 244,017,069,001.75/566,672.12
  6. Step 6: Final answer
    x = 430,614.21

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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.