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Finding the Fourth Proportional to 866,065.52, 1,195,324.32 and 636,955.40

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Solution

The fourth proportional to 866,065.52, 1,195,324.32 and 636,955.40 is: 879,111.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,065.52 : 1,195,324.32 = 636,955.40 : x
  2. Step 2: Convert to fraction form
    866,065.52/1,195,324.32 = 636,955.40/x
  3. Step 3: Cross multiply
    866,065.52x = 1,195,324.32 × 636,955.40
  4. Step 4: Simplify right side
    866,065.52x = 761,368,280,375.33
  5. Step 5: Solve for x
    x = 761,368,280,375.33/866,065.52
  6. Step 6: Final answer
    x = 879,111.64

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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.