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Finding the Fourth Proportional to 574,516.80, 861,775.20 and 153,835.20

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Solution

The fourth proportional to 574,516.80, 861,775.20 and 153,835.20 is: 230,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,516.80 : 861,775.20 = 153,835.20 : x
  2. Step 2: Convert to fraction form
    574,516.80/861,775.20 = 153,835.20/x
  3. Step 3: Cross multiply
    574,516.80x = 861,775.20 × 153,835.20
  4. Step 4: Simplify right side
    574,516.80x = 132,571,360,247.04
  5. Step 5: Solve for x
    x = 132,571,360,247.04/574,516.80
  6. Step 6: Final answer
    x = 230,752.80

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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.