Home / 672,031.85-1,008,047.78-506,143.85

Finding the Fourth Proportional to 672,031.85, 1,008,047.78 and 506,143.85

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Solution

The fourth proportional to 672,031.85, 1,008,047.78 and 506,143.85 is: 759,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,031.85 : 1,008,047.78 = 506,143.85 : x
  2. Step 2: Convert to fraction form
    672,031.85/1,008,047.78 = 506,143.85/x
  3. Step 3: Cross multiply
    672,031.85x = 1,008,047.78 × 506,143.85
  4. Step 4: Simplify right side
    672,031.85x = 510,217,184,353.15
  5. Step 5: Solve for x
    x = 510,217,184,353.15/672,031.85
  6. Step 6: Final answer
    x = 759,215.78

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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.