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Finding the Fourth Proportional to 922,258.80, 1,383,271.56 and 291,236.40

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Solution

The fourth proportional to 922,258.80, 1,383,271.56 and 291,236.40 is: 436,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,258.80 : 1,383,271.56 = 291,236.40 : x
  2. Step 2: Convert to fraction form
    922,258.80/1,383,271.56 = 291,236.40/x
  3. Step 3: Cross multiply
    922,258.80x = 1,383,271.56 × 291,236.40
  4. Step 4: Simplify right side
    922,258.80x = 402,859,029,356.78
  5. Step 5: Solve for x
    x = 402,859,029,356.78/922,258.80
  6. Step 6: Final answer
    x = 436,817.77

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1.5x scale

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.