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Finding the Fourth Proportional to 922,257.64, 1,383,351.90 and 291,209.32

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Solution

The fourth proportional to 922,257.64, 1,383,351.90 and 291,209.32 is: 436,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,257.64 : 1,383,351.90 = 291,209.32 : x
  2. Step 2: Convert to fraction form
    922,257.64/1,383,351.90 = 291,209.32/x
  3. Step 3: Cross multiply
    922,257.64x = 1,383,351.90 × 291,209.32
  4. Step 4: Simplify right side
    922,257.64x = 402,844,966,119.71
  5. Step 5: Solve for x
    x = 402,844,966,119.71/922,257.64
  6. Step 6: Final answer
    x = 436,803.07

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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.