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Finding the Fourth Proportional to 584,620.80, 876,639.60 and 268,720.80

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Solution

The fourth proportional to 584,620.80, 876,639.60 and 268,720.80 is: 402,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,620.80 : 876,639.60 = 268,720.80 : x
  2. Step 2: Convert to fraction form
    584,620.80/876,639.60 = 268,720.80/x
  3. Step 3: Cross multiply
    584,620.80x = 876,639.60 × 268,720.80
  4. Step 4: Simplify right side
    584,620.80x = 235,571,294,623.68
  5. Step 5: Solve for x
    x = 235,571,294,623.68/584,620.80
  6. Step 6: Final answer
    x = 402,947.17

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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.