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Finding the Fourth Proportional to 692,179.40, 966,689.20 and 692,179.40

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Solution

The fourth proportional to 692,179.40, 966,689.20 and 692,179.40 is: 966,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,179.40 : 966,689.20 = 692,179.40 : x
  2. Step 2: Convert to fraction form
    692,179.40/966,689.20 = 692,179.40/x
  3. Step 3: Cross multiply
    692,179.40x = 966,689.20 × 692,179.40
  4. Step 4: Simplify right side
    692,179.40x = 669,122,350,442.48
  5. Step 5: Solve for x
    x = 669,122,350,442.48/692,179.40
  6. Step 6: Final answer
    x = 966,689.20

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.