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Finding the Fourth Proportional to 386,613.32, 533,351.59 and 250,681.68

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Solution

The fourth proportional to 386,613.32, 533,351.59 and 250,681.68 is: 345,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,613.32 : 533,351.59 = 250,681.68 : x
  2. Step 2: Convert to fraction form
    386,613.32/533,351.59 = 250,681.68/x
  3. Step 3: Cross multiply
    386,613.32x = 533,351.59 × 250,681.68
  4. Step 4: Simplify right side
    386,613.32x = 133,701,471,985.17
  5. Step 5: Solve for x
    x = 133,701,471,985.17/386,613.32
  6. Step 6: Final answer
    x = 345,827.39

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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.