Home / 639,214.02-882,165.18-367,376.76

Finding the Fourth Proportional to 639,214.02, 882,165.18 and 367,376.76

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Solution

The fourth proportional to 639,214.02, 882,165.18 and 367,376.76 is: 507,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,214.02 : 882,165.18 = 367,376.76 : x
  2. Step 2: Convert to fraction form
    639,214.02/882,165.18 = 367,376.76/x
  3. Step 3: Cross multiply
    639,214.02x = 882,165.18 × 367,376.76
  4. Step 4: Simplify right side
    639,214.02x = 324,086,985,613.22
  5. Step 5: Solve for x
    x = 324,086,985,613.22/639,214.02
  6. Step 6: Final answer
    x = 507,008.57

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.