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Finding the Fourth Proportional to 472,227.66, 651,655.20 and 257,363.12

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Solution

The fourth proportional to 472,227.66, 651,655.20 and 257,363.12 is: 355,150.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,227.66 : 651,655.20 = 257,363.12 : x
  2. Step 2: Convert to fraction form
    472,227.66/651,655.20 = 257,363.12/x
  3. Step 3: Cross multiply
    472,227.66x = 651,655.20 × 257,363.12
  4. Step 4: Simplify right side
    472,227.66x = 167,712,015,436.22
  5. Step 5: Solve for x
    x = 167,712,015,436.22/472,227.66
  6. Step 6: Final answer
    x = 355,150.77

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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.