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Finding the Fourth Proportional to 472,042.26, 651,425.80 and 257,182.28

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Solution

The fourth proportional to 472,042.26, 651,425.80 and 257,182.28 is: 354,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,042.26 : 651,425.80 = 257,182.28 : x
  2. Step 2: Convert to fraction form
    472,042.26/651,425.80 = 257,182.28/x
  3. Step 3: Cross multiply
    472,042.26x = 651,425.80 × 257,182.28
  4. Step 4: Simplify right side
    472,042.26x = 167,535,172,494.82
  5. Step 5: Solve for x
    x = 167,535,172,494.82/472,042.26
  6. Step 6: Final answer
    x = 354,915.62

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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.