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Finding the Fourth Proportional to 518,254.08, 715,163.04 and 291,885.12

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Solution

The fourth proportional to 518,254.08, 715,163.04 and 291,885.12 is: 402,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,254.08 : 715,163.04 = 291,885.12 : x
  2. Step 2: Convert to fraction form
    518,254.08/715,163.04 = 291,885.12/x
  3. Step 3: Cross multiply
    518,254.08x = 715,163.04 × 291,885.12
  4. Step 4: Simplify right side
    518,254.08x = 208,745,449,749.97
  5. Step 5: Solve for x
    x = 208,745,449,749.97/518,254.08
  6. Step 6: Final answer
    x = 402,785.93

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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.