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Finding the Fourth Proportional to 640,173.17, 883,531.52 and 382,061.08

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Solution

The fourth proportional to 640,173.17, 883,531.52 and 382,061.08 is: 527,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,173.17 : 883,531.52 = 382,061.08 : x
  2. Step 2: Convert to fraction form
    640,173.17/883,531.52 = 382,061.08/x
  3. Step 3: Cross multiply
    640,173.17x = 883,531.52 × 382,061.08
  4. Step 4: Simplify right side
    640,173.17x = 337,563,005,961.69
  5. Step 5: Solve for x
    x = 337,563,005,961.69/640,173.17
  6. Step 6: Final answer
    x = 527,299.52

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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.