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Finding the Fourth Proportional to 457,693.08, 631,653.87 and 253,807.95

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Solution

The fourth proportional to 457,693.08, 631,653.87 and 253,807.95 is: 350,275.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,693.08 : 631,653.87 = 253,807.95 : x
  2. Step 2: Convert to fraction form
    457,693.08/631,653.87 = 253,807.95/x
  3. Step 3: Cross multiply
    457,693.08x = 631,653.87 × 253,807.95
  4. Step 4: Simplify right side
    457,693.08x = 160,318,773,854.27
  5. Step 5: Solve for x
    x = 160,318,773,854.27/457,693.08
  6. Step 6: Final answer
    x = 350,275.72

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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.