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Finding the Fourth Proportional to 1,381,644.64, 2,072,746.32 and 582,928.12

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Solution

The fourth proportional to 1,381,644.64, 2,072,746.32 and 582,928.12 is: 874,510.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,644.64 : 2,072,746.32 = 582,928.12 : x
  2. Step 2: Convert to fraction form
    1,381,644.64/2,072,746.32 = 582,928.12/x
  3. Step 3: Cross multiply
    1,381,644.64x = 2,072,746.32 × 582,928.12
  4. Step 4: Simplify right side
    1,381,644.64x = 1,208,262,115,554.52
  5. Step 5: Solve for x
    x = 1,208,262,115,554.52/1,381,644.64
  6. Step 6: Final answer
    x = 874,510.04

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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.