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Finding the Fourth Proportional to 974,809.60, 1,462,214.40 and 691,374.40

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Solution

The fourth proportional to 974,809.60, 1,462,214.40 and 691,374.40 is: 1,037,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,809.60 : 1,462,214.40 = 691,374.40 : x
  2. Step 2: Convert to fraction form
    974,809.60/1,462,214.40 = 691,374.40/x
  3. Step 3: Cross multiply
    974,809.60x = 1,462,214.40 × 691,374.40
  4. Step 4: Simplify right side
    974,809.60x = 1,010,937,603,471.36
  5. Step 5: Solve for x
    x = 1,010,937,603,471.36/974,809.60
  6. Step 6: Final answer
    x = 1,037,061.60

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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.