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Finding the Fourth Proportional to 472,195.15, 651,610.32 and 257,330.56

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Solution

The fourth proportional to 472,195.15, 651,610.32 and 257,330.56 is: 355,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,195.15 : 651,610.32 = 257,330.56 : x
  2. Step 2: Convert to fraction form
    472,195.15/651,610.32 = 257,330.56/x
  3. Step 3: Cross multiply
    472,195.15x = 651,610.32 × 257,330.56
  4. Step 4: Simplify right side
    472,195.15x = 167,679,248,547.38
  5. Step 5: Solve for x
    x = 167,679,248,547.38/472,195.15
  6. Step 6: Final answer
    x = 355,105.83

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1.5x scale

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.