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Finding the Fourth Proportional to 518,384.17, 715,647.68 and 363,811.11

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Solution

The fourth proportional to 518,384.17, 715,647.68 and 363,811.11 is: 502,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,384.17 : 715,647.68 = 363,811.11 : x
  2. Step 2: Convert to fraction form
    518,384.17/715,647.68 = 363,811.11/x
  3. Step 3: Cross multiply
    518,384.17x = 715,647.68 × 363,811.11
  4. Step 4: Simplify right side
    518,384.17x = 260,360,576,829.73
  5. Step 5: Solve for x
    x = 260,360,576,829.73/518,384.17
  6. Step 6: Final answer
    x = 502,254.10

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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.