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Finding the Fourth Proportional to 439,887.16, 663,127.08 and 410,592.16

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Solution

The fourth proportional to 439,887.16, 663,127.08 and 410,592.16 is: 618,965.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,887.16 : 663,127.08 = 410,592.16 : x
  2. Step 2: Convert to fraction form
    439,887.16/663,127.08 = 410,592.16/x
  3. Step 3: Cross multiply
    439,887.16x = 663,127.08 × 410,592.16
  4. Step 4: Simplify right side
    439,887.16x = 272,274,780,131.69
  5. Step 5: Solve for x
    x = 272,274,780,131.69/439,887.16
  6. Step 6: Final answer
    x = 618,965.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.