Home / 929,000.40-1,393,541.10-255,064.20

Finding the Fourth Proportional to 929,000.40, 1,393,541.10 and 255,064.20

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Solution

The fourth proportional to 929,000.40, 1,393,541.10 and 255,064.20 is: 382,607.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,000.40 : 1,393,541.10 = 255,064.20 : x
  2. Step 2: Convert to fraction form
    929,000.40/1,393,541.10 = 255,064.20/x
  3. Step 3: Cross multiply
    929,000.40x = 1,393,541.10 × 255,064.20
  4. Step 4: Simplify right side
    929,000.40x = 355,442,445,838.62
  5. Step 5: Solve for x
    x = 355,442,445,838.62/929,000.40
  6. Step 6: Final answer
    x = 382,607.42

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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.