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Finding the Fourth Proportional to 317,523.96, 438,223.50 and 183,387.96

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Solution

The fourth proportional to 317,523.96, 438,223.50 and 183,387.96 is: 253,098.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,523.96 : 438,223.50 = 183,387.96 : x
  2. Step 2: Convert to fraction form
    317,523.96/438,223.50 = 183,387.96/x
  3. Step 3: Cross multiply
    317,523.96x = 438,223.50 × 183,387.96
  4. Step 4: Simplify right side
    317,523.96x = 80,364,913,689.06
  5. Step 5: Solve for x
    x = 80,364,913,689.06/317,523.96
  6. Step 6: Final answer
    x = 253,098.74

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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.