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Finding the Fourth Proportional to 890,065.92, 1,334,165.76 and 416,352

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Solution

The fourth proportional to 890,065.92, 1,334,165.76 and 416,352 is: 624,091.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,065.92 : 1,334,165.76 = 416,352 : x
  2. Step 2: Convert to fraction form
    890,065.92/1,334,165.76 = 416,352/x
  3. Step 3: Cross multiply
    890,065.92x = 1,334,165.76 × 416,352
  4. Step 4: Simplify right side
    890,065.92x = 555,482,582,507.52
  5. Step 5: Solve for x
    x = 555,482,582,507.52/890,065.92
  6. Step 6: Final answer
    x = 624,091.51

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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.