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Finding the Fourth Proportional to 476,158.52, 657,117.72 and 261,306.28

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Solution

The fourth proportional to 476,158.52, 657,117.72 and 261,306.28 is: 360,613.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,158.52 : 657,117.72 = 261,306.28 : x
  2. Step 2: Convert to fraction form
    476,158.52/657,117.72 = 261,306.28/x
  3. Step 3: Cross multiply
    476,158.52x = 657,117.72 × 261,306.28
  4. Step 4: Simplify right side
    476,158.52x = 171,708,984,312.59
  5. Step 5: Solve for x
    x = 171,708,984,312.59/476,158.52
  6. Step 6: Final answer
    x = 360,613.07

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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.