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Finding the Fourth Proportional to 472,167.72, 651,582.72 and 257,309.28

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Solution

The fourth proportional to 472,167.72, 651,582.72 and 257,309.28 is: 355,082.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,167.72 : 651,582.72 = 257,309.28 : x
  2. Step 2: Convert to fraction form
    472,167.72/651,582.72 = 257,309.28/x
  3. Step 3: Cross multiply
    472,167.72x = 651,582.72 × 257,309.28
  4. Step 4: Simplify right side
    472,167.72x = 167,658,280,543.64
  5. Step 5: Solve for x
    x = 167,658,280,543.64/472,167.72
  6. Step 6: Final answer
    x = 355,082.05

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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.