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Finding the Fourth Proportional to 1,154,356.78, 1,592,623.99 and 746,974.04

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Solution

The fourth proportional to 1,154,356.78, 1,592,623.99 and 746,974.04 is: 1,030,572.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,356.78 : 1,592,623.99 = 746,974.04 : x
  2. Step 2: Convert to fraction form
    1,154,356.78/1,592,623.99 = 746,974.04/x
  3. Step 3: Cross multiply
    1,154,356.78x = 1,592,623.99 × 746,974.04
  4. Step 4: Simplify right side
    1,154,356.78x = 1,189,648,776,011.22
  5. Step 5: Solve for x
    x = 1,189,648,776,011.22/1,154,356.78
  6. Step 6: Final answer
    x = 1,030,572.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.