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Finding the Fourth Proportional to 472,248.72, 651,684.15 and 257,384.16

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Solution

The fourth proportional to 472,248.72, 651,684.15 and 257,384.16 is: 355,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,248.72 : 651,684.15 = 257,384.16 : x
  2. Step 2: Convert to fraction form
    472,248.72/651,684.15 = 257,384.16/x
  3. Step 3: Cross multiply
    472,248.72x = 651,684.15 × 257,384.16
  4. Step 4: Simplify right side
    472,248.72x = 167,733,177,533.06
  5. Step 5: Solve for x
    x = 167,733,177,533.06/472,248.72
  6. Step 6: Final answer
    x = 355,179.74

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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.