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Finding the Fourth Proportional to 440,045.40, 660,068.10 and 282,581.40

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Solution

The fourth proportional to 440,045.40, 660,068.10 and 282,581.40 is: 423,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,045.40 : 660,068.10 = 282,581.40 : x
  2. Step 2: Convert to fraction form
    440,045.40/660,068.10 = 282,581.40/x
  3. Step 3: Cross multiply
    440,045.40x = 660,068.10 × 282,581.40
  4. Step 4: Simplify right side
    440,045.40x = 186,522,967,793.34
  5. Step 5: Solve for x
    x = 186,522,967,793.34/440,045.40
  6. Step 6: Final answer
    x = 423,872.10

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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.