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Finding the Fourth Proportional to 691,908.83, 955,024.12 and 401,613.92

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Solution

The fourth proportional to 691,908.83, 955,024.12 and 401,613.92 is: 554,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,908.83 : 955,024.12 = 401,613.92 : x
  2. Step 2: Convert to fraction form
    691,908.83/955,024.12 = 401,613.92/x
  3. Step 3: Cross multiply
    691,908.83x = 955,024.12 × 401,613.92
  4. Step 4: Simplify right side
    691,908.83x = 383,550,977,785.91
  5. Step 5: Solve for x
    x = 383,550,977,785.91/691,908.83
  6. Step 6: Final answer
    x = 554,337.45

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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.