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Finding the Fourth Proportional to 570,760.08, 787,655.52 and 316,115.52

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Solution

The fourth proportional to 570,760.08, 787,655.52 and 316,115.52 is: 436,243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,760.08 : 787,655.52 = 316,115.52 : x
  2. Step 2: Convert to fraction form
    570,760.08/787,655.52 = 316,115.52/x
  3. Step 3: Cross multiply
    570,760.08x = 787,655.52 × 316,115.52
  4. Step 4: Simplify right side
    570,760.08x = 248,990,134,285.67
  5. Step 5: Solve for x
    x = 248,990,134,285.67/570,760.08
  6. Step 6: Final answer
    x = 436,243.08

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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.