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Finding the Fourth Proportional to 413,759.61, 571,243.01 and 328,064.75

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Solution

The fourth proportional to 413,759.61, 571,243.01 and 328,064.75 is: 452,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,759.61 : 571,243.01 = 328,064.75 : x
  2. Step 2: Convert to fraction form
    413,759.61/571,243.01 = 328,064.75/x
  3. Step 3: Cross multiply
    413,759.61x = 571,243.01 × 328,064.75
  4. Step 4: Simplify right side
    413,759.61x = 187,404,695,439.82
  5. Step 5: Solve for x
    x = 187,404,695,439.82/413,759.61
  6. Step 6: Final answer
    x = 452,931.34

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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.