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Finding the Fourth Proportional to 544,718.80, 817,078.20 and 308,522.80

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Solution

The fourth proportional to 544,718.80, 817,078.20 and 308,522.80 is: 462,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,718.80 : 817,078.20 = 308,522.80 : x
  2. Step 2: Convert to fraction form
    544,718.80/817,078.20 = 308,522.80/x
  3. Step 3: Cross multiply
    544,718.80x = 817,078.20 × 308,522.80
  4. Step 4: Simplify right side
    544,718.80x = 252,087,254,082.96
  5. Step 5: Solve for x
    x = 252,087,254,082.96/544,718.80
  6. Step 6: Final answer
    x = 462,784.20

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Double scale
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Similar ratio
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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.