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Finding the Fourth Proportional to 472,070.02, 651,448.42 and 257,211.85

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Solution

The fourth proportional to 472,070.02, 651,448.42 and 257,211.85 is: 354,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,070.02 : 651,448.42 = 257,211.85 : x
  2. Step 2: Convert to fraction form
    472,070.02/651,448.42 = 257,211.85/x
  3. Step 3: Cross multiply
    472,070.02x = 651,448.42 × 257,211.85
  4. Step 4: Simplify right side
    472,070.02x = 167,560,253,287.78
  5. Step 5: Solve for x
    x = 167,560,253,287.78/472,070.02
  6. Step 6: Final answer
    x = 354,947.88

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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.