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Finding the Fourth Proportional to 978,045.90, 1,467,068.85 and 894,065.10

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Solution

The fourth proportional to 978,045.90, 1,467,068.85 and 894,065.10 is: 1,341,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,045.90 : 1,467,068.85 = 894,065.10 : x
  2. Step 2: Convert to fraction form
    978,045.90/1,467,068.85 = 894,065.10/x
  3. Step 3: Cross multiply
    978,045.90x = 1,467,068.85 × 894,065.10
  4. Step 4: Simplify right side
    978,045.90x = 1,311,655,058,082.14
  5. Step 5: Solve for x
    x = 1,311,655,058,082.14/978,045.90
  6. Step 6: Final answer
    x = 1,341,097.65

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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.