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Finding the Fourth Proportional to 618,228.17, 853,182.10 and 342,585.27

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Solution

The fourth proportional to 618,228.17, 853,182.10 and 342,585.27 is: 472,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,228.17 : 853,182.10 = 342,585.27 : x
  2. Step 2: Convert to fraction form
    618,228.17/853,182.10 = 342,585.27/x
  3. Step 3: Cross multiply
    618,228.17x = 853,182.10 × 342,585.27
  4. Step 4: Simplify right side
    618,228.17x = 292,287,620,087.67
  5. Step 5: Solve for x
    x = 292,287,620,087.67/618,228.17
  6. Step 6: Final answer
    x = 472,782.76

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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.