Home / 1,161,997.57-1,603,307.86-678,343.20

Finding the Fourth Proportional to 1,161,997.57, 1,603,307.86 and 678,343.20

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Solution

The fourth proportional to 1,161,997.57, 1,603,307.86 and 678,343.20 is: 935,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,997.57 : 1,603,307.86 = 678,343.20 : x
  2. Step 2: Convert to fraction form
    1,161,997.57/1,603,307.86 = 678,343.20/x
  3. Step 3: Cross multiply
    1,161,997.57x = 1,603,307.86 × 678,343.20
  4. Step 4: Simplify right side
    1,161,997.57x = 1,087,592,984,337.55
  5. Step 5: Solve for x
    x = 1,087,592,984,337.55/1,161,997.57
  6. Step 6: Final answer
    x = 935,968.38

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.