Home / 854,468.30-1,281,702.45-412,100.30

Finding the Fourth Proportional to 854,468.30, 1,281,702.45 and 412,100.30

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Solution

The fourth proportional to 854,468.30, 1,281,702.45 and 412,100.30 is: 618,150.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,468.30 : 1,281,702.45 = 412,100.30 : x
  2. Step 2: Convert to fraction form
    854,468.30/1,281,702.45 = 412,100.30/x
  3. Step 3: Cross multiply
    854,468.30x = 1,281,702.45 × 412,100.30
  4. Step 4: Simplify right side
    854,468.30x = 528,189,964,155.74
  5. Step 5: Solve for x
    x = 528,189,964,155.74/854,468.30
  6. Step 6: Final answer
    x = 618,150.45

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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.