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Finding the Fourth Proportional to 586,856.80, 880,285.20 and 271,928.80

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Solution

The fourth proportional to 586,856.80, 880,285.20 and 271,928.80 is: 407,893.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,856.80 : 880,285.20 = 271,928.80 : x
  2. Step 2: Convert to fraction form
    586,856.80/880,285.20 = 271,928.80/x
  3. Step 3: Cross multiply
    586,856.80x = 880,285.20 × 271,928.80
  4. Step 4: Simplify right side
    586,856.80x = 239,374,898,093.76
  5. Step 5: Solve for x
    x = 239,374,898,093.76/586,856.80
  6. Step 6: Final answer
    x = 407,893.20

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Double scale
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Similar ratio
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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.