Home / 543,424.10-815,136.15-403,456.10

Finding the Fourth Proportional to 543,424.10, 815,136.15 and 403,456.10

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Solution

The fourth proportional to 543,424.10, 815,136.15 and 403,456.10 is: 605,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,424.10 : 815,136.15 = 403,456.10 : x
  2. Step 2: Convert to fraction form
    543,424.10/815,136.15 = 403,456.10/x
  3. Step 3: Cross multiply
    543,424.10x = 815,136.15 × 403,456.10
  4. Step 4: Simplify right side
    543,424.10x = 328,871,652,048.02
  5. Step 5: Solve for x
    x = 328,871,652,048.02/543,424.10
  6. Step 6: Final answer
    x = 605,184.15

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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.