Home / 879,658.20-1,319,487.30-381,994.20

Finding the Fourth Proportional to 879,658.20, 1,319,487.30 and 381,994.20

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Solution

The fourth proportional to 879,658.20, 1,319,487.30 and 381,994.20 is: 572,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,658.20 : 1,319,487.30 = 381,994.20 : x
  2. Step 2: Convert to fraction form
    879,658.20/1,319,487.30 = 381,994.20/x
  3. Step 3: Cross multiply
    879,658.20x = 1,319,487.30 × 381,994.20
  4. Step 4: Simplify right side
    879,658.20x = 504,036,495,573.66
  5. Step 5: Solve for x
    x = 504,036,495,573.66/879,658.20
  6. Step 6: Final answer
    x = 572,991.30

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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.