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Finding the Fourth Proportional to 974,468.40, 1,461,702.60 and 920,401.20

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Solution

The fourth proportional to 974,468.40, 1,461,702.60 and 920,401.20 is: 1,380,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,468.40 : 1,461,702.60 = 920,401.20 : x
  2. Step 2: Convert to fraction form
    974,468.40/1,461,702.60 = 920,401.20/x
  3. Step 3: Cross multiply
    974,468.40x = 1,461,702.60 × 920,401.20
  4. Step 4: Simplify right side
    974,468.40x = 1,345,352,827,083.12
  5. Step 5: Solve for x
    x = 1,345,352,827,083.12/974,468.40
  6. Step 6: Final answer
    x = 1,380,601.80

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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.