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Finding the Fourth Proportional to 1,046,916.80, 1,570,375.20 and 969,934.40

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Solution

The fourth proportional to 1,046,916.80, 1,570,375.20 and 969,934.40 is: 1,454,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046,916.80 : 1,570,375.20 = 969,934.40 : x
  2. Step 2: Convert to fraction form
    1,046,916.80/1,570,375.20 = 969,934.40/x
  3. Step 3: Cross multiply
    1,046,916.80x = 1,570,375.20 × 969,934.40
  4. Step 4: Simplify right side
    1,046,916.80x = 1,523,160,927,386.88
  5. Step 5: Solve for x
    x = 1,523,160,927,386.88/1,046,916.80
  6. Step 6: Final answer
    x = 1,454,901.60

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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.