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Finding the Fourth Proportional to 922,977.80, 1,384,337.10 and 291,955.40

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Solution

The fourth proportional to 922,977.80, 1,384,337.10 and 291,955.40 is: 437,892.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,977.80 : 1,384,337.10 = 291,955.40 : x
  2. Step 2: Convert to fraction form
    922,977.80/1,384,337.10 = 291,955.40/x
  3. Step 3: Cross multiply
    922,977.80x = 1,384,337.10 × 291,955.40
  4. Step 4: Simplify right side
    922,977.80x = 404,164,691,765.34
  5. Step 5: Solve for x
    x = 404,164,691,765.34/922,977.80
  6. Step 6: Final answer
    x = 437,892.11

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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.