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Finding the Fourth Proportional to 404,887.74, 607,700.22 and 215,507.17

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Solution

The fourth proportional to 404,887.74, 607,700.22 and 215,507.17 is: 323,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,887.74 : 607,700.22 = 215,507.17 : x
  2. Step 2: Convert to fraction form
    404,887.74/607,700.22 = 215,507.17/x
  3. Step 3: Cross multiply
    404,887.74x = 607,700.22 × 215,507.17
  4. Step 4: Simplify right side
    404,887.74x = 130,963,754,620.58
  5. Step 5: Solve for x
    x = 130,963,754,620.58/404,887.74
  6. Step 6: Final answer
    x = 323,456.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.