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Finding the Fourth Proportional to 472,263.62, 651,724.29 and 257,403.86

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Solution

The fourth proportional to 472,263.62, 651,724.29 and 257,403.86 is: 355,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,263.62 : 651,724.29 = 257,403.86 : x
  2. Step 2: Convert to fraction form
    472,263.62/651,724.29 = 257,403.86/x
  3. Step 3: Cross multiply
    472,263.62x = 651,724.29 × 257,403.86
  4. Step 4: Simplify right side
    472,263.62x = 167,756,347,901.76
  5. Step 5: Solve for x
    x = 167,756,347,901.76/472,263.62
  6. Step 6: Final answer
    x = 355,217.60

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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.