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Finding the Fourth Proportional to 472,468.79, 651,990.69 and 268,516.16

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Solution

The fourth proportional to 472,468.79, 651,990.69 and 268,516.16 is: 370,543.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,468.79 : 651,990.69 = 268,516.16 : x
  2. Step 2: Convert to fraction form
    472,468.79/651,990.69 = 268,516.16/x
  3. Step 3: Cross multiply
    472,468.79x = 651,990.69 × 268,516.16
  4. Step 4: Simplify right side
    472,468.79x = 175,070,033,174.60
  5. Step 5: Solve for x
    x = 175,070,033,174.60/472,468.79
  6. Step 6: Final answer
    x = 370,543.06

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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.