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Finding the Fourth Proportional to 657,069.72, 906,754.95 and 370,588.92

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Solution

The fourth proportional to 657,069.72, 906,754.95 and 370,588.92 is: 511,412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,069.72 : 906,754.95 = 370,588.92 : x
  2. Step 2: Convert to fraction form
    657,069.72/906,754.95 = 370,588.92/x
  3. Step 3: Cross multiply
    657,069.72x = 906,754.95 × 370,588.92
  4. Step 4: Simplify right side
    657,069.72x = 336,033,337,625.15
  5. Step 5: Solve for x
    x = 336,033,337,625.15/657,069.72
  6. Step 6: Final answer
    x = 511,412.00

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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.