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Finding the Fourth Proportional to 472,151.36, 651,560.28 and 257,293.28

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Solution

The fourth proportional to 472,151.36, 651,560.28 and 257,293.28 is: 355,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,151.36 : 651,560.28 = 257,293.28 : x
  2. Step 2: Convert to fraction form
    472,151.36/651,560.28 = 257,293.28/x
  3. Step 3: Cross multiply
    472,151.36x = 651,560.28 × 257,293.28
  4. Step 4: Simplify right side
    472,151.36x = 167,642,081,558.92
  5. Step 5: Solve for x
    x = 167,642,081,558.92/472,151.36
  6. Step 6: Final answer
    x = 355,060.04

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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.