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Finding the Fourth Proportional to 578,801.70, 868,202.55 and 410,840.10

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Solution

The fourth proportional to 578,801.70, 868,202.55 and 410,840.10 is: 616,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,801.70 : 868,202.55 = 410,840.10 : x
  2. Step 2: Convert to fraction form
    578,801.70/868,202.55 = 410,840.10/x
  3. Step 3: Cross multiply
    578,801.70x = 868,202.55 × 410,840.10
  4. Step 4: Simplify right side
    578,801.70x = 356,692,422,462.26
  5. Step 5: Solve for x
    x = 356,692,422,462.26/578,801.70
  6. Step 6: Final answer
    x = 616,260.15

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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.