Home / 879,454.20-1,319,181.30-407,062.20

Finding the Fourth Proportional to 879,454.20, 1,319,181.30 and 407,062.20

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Solution

The fourth proportional to 879,454.20, 1,319,181.30 and 407,062.20 is: 610,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,454.20 : 1,319,181.30 = 407,062.20 : x
  2. Step 2: Convert to fraction form
    879,454.20/1,319,181.30 = 407,062.20/x
  3. Step 3: Cross multiply
    879,454.20x = 1,319,181.30 × 407,062.20
  4. Step 4: Simplify right side
    879,454.20x = 536,988,842,176.86
  5. Step 5: Solve for x
    x = 536,988,842,176.86/879,454.20
  6. Step 6: Final answer
    x = 610,593.30

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Half scale
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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.