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Finding the Fourth Proportional to 866,618, 1,195,922.76 and 484,641.20

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Solution

The fourth proportional to 866,618, 1,195,922.76 and 484,641.20 is: 668,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,618 : 1,195,922.76 = 484,641.20 : x
  2. Step 2: Convert to fraction form
    866,618/1,195,922.76 = 484,641.20/x
  3. Step 3: Cross multiply
    866,618x = 1,195,922.76 × 484,641.20
  4. Step 4: Simplify right side
    866,618x = 579,593,441,513.71
  5. Step 5: Solve for x
    x = 579,593,441,513.71/866,618
  6. Step 6: Final answer
    x = 668,799.22

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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.