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Finding the Fourth Proportional to 539,082.10, 808,623.15 and 512,838.10

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Solution

The fourth proportional to 539,082.10, 808,623.15 and 512,838.10 is: 769,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,082.10 : 808,623.15 = 512,838.10 : x
  2. Step 2: Convert to fraction form
    539,082.10/808,623.15 = 512,838.10/x
  3. Step 3: Cross multiply
    539,082.10x = 808,623.15 × 512,838.10
  4. Step 4: Simplify right side
    539,082.10x = 414,692,759,862.02
  5. Step 5: Solve for x
    x = 414,692,759,862.02/539,082.10
  6. Step 6: Final answer
    x = 769,257.15

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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.