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Finding the Fourth Proportional to 472,452.48, 651,454.74 and 386,143.59

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Solution

The fourth proportional to 472,452.48, 651,454.74 and 386,143.59 is: 532,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,452.48 : 651,454.74 = 386,143.59 : x
  2. Step 2: Convert to fraction form
    472,452.48/651,454.74 = 386,143.59/x
  3. Step 3: Cross multiply
    472,452.48x = 651,454.74 × 386,143.59
  4. Step 4: Simplify right side
    472,452.48x = 251,555,072,574.77
  5. Step 5: Solve for x
    x = 251,555,072,574.77/472,452.48
  6. Step 6: Final answer
    x = 532,445.24

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Similar ratio
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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.