Home / 716,962.20-989,420.30-411,088.38

Finding the Fourth Proportional to 716,962.20, 989,420.30 and 411,088.38

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Solution

The fourth proportional to 716,962.20, 989,420.30 and 411,088.38 is: 567,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,962.20 : 989,420.30 = 411,088.38 : x
  2. Step 2: Convert to fraction form
    716,962.20/989,420.30 = 411,088.38/x
  3. Step 3: Cross multiply
    716,962.20x = 989,420.30 × 411,088.38
  4. Step 4: Simplify right side
    716,962.20x = 406,739,188,266.11
  5. Step 5: Solve for x
    x = 406,739,188,266.11/716,962.20
  6. Step 6: Final answer
    x = 567,309.11

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Similar ratio
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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.