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Finding the Fourth Proportional to 866,797.81, 1,196,116.02 and 484,750.78

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Solution

The fourth proportional to 866,797.81, 1,196,116.02 and 484,750.78 is: 668,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,797.81 : 1,196,116.02 = 484,750.78 : x
  2. Step 2: Convert to fraction form
    866,797.81/1,196,116.02 = 484,750.78/x
  3. Step 3: Cross multiply
    866,797.81x = 1,196,116.02 × 484,750.78
  4. Step 4: Simplify right side
    866,797.81x = 579,818,176,978.46
  5. Step 5: Solve for x
    x = 579,818,176,978.46/866,797.81
  6. Step 6: Final answer
    x = 668,919.75

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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.