Home / 383,946.10-575,919.15-257,974.90

Finding the Fourth Proportional to 383,946.10, 575,919.15 and 257,974.90

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Solution

The fourth proportional to 383,946.10, 575,919.15 and 257,974.90 is: 386,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,946.10 : 575,919.15 = 257,974.90 : x
  2. Step 2: Convert to fraction form
    383,946.10/575,919.15 = 257,974.90/x
  3. Step 3: Cross multiply
    383,946.10x = 575,919.15 × 257,974.90
  4. Step 4: Simplify right side
    383,946.10x = 148,572,685,129.34
  5. Step 5: Solve for x
    x = 148,572,685,129.34/383,946.10
  6. Step 6: Final answer
    x = 386,962.35

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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.