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Finding the Fourth Proportional to 368,613.52, 508,713.32 and 207,484.72

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Solution

The fourth proportional to 368,613.52, 508,713.32 and 207,484.72 is: 286,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,613.52 : 508,713.32 = 207,484.72 : x
  2. Step 2: Convert to fraction form
    368,613.52/508,713.32 = 207,484.72/x
  3. Step 3: Cross multiply
    368,613.52x = 508,713.32 × 207,484.72
  4. Step 4: Simplify right side
    368,613.52x = 105,550,240,760.47
  5. Step 5: Solve for x
    x = 105,550,240,760.47/368,613.52
  6. Step 6: Final answer
    x = 286,343.92

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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.