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Finding the Fourth Proportional to 672,280.40, 941,892.40 and 672,280.40

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Solution

The fourth proportional to 672,280.40, 941,892.40 and 672,280.40 is: 941,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,280.40 : 941,892.40 = 672,280.40 : x
  2. Step 2: Convert to fraction form
    672,280.40/941,892.40 = 672,280.40/x
  3. Step 3: Cross multiply
    672,280.40x = 941,892.40 × 672,280.40
  4. Step 4: Simplify right side
    672,280.40x = 633,215,799,428.96
  5. Step 5: Solve for x
    x = 633,215,799,428.96/672,280.40
  6. Step 6: Final answer
    x = 941,892.40

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Double scale
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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.