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Finding the Fourth Proportional to 662,557.90, 993,836.85 and 617,943.10

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Solution

The fourth proportional to 662,557.90, 993,836.85 and 617,943.10 is: 926,914.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,557.90 : 993,836.85 = 617,943.10 : x
  2. Step 2: Convert to fraction form
    662,557.90/993,836.85 = 617,943.10/x
  3. Step 3: Cross multiply
    662,557.90x = 993,836.85 × 617,943.10
  4. Step 4: Simplify right side
    662,557.90x = 614,134,623,983.24
  5. Step 5: Solve for x
    x = 614,134,623,983.24/662,557.90
  6. Step 6: Final answer
    x = 926,914.65

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