Home / 289,331.40-433,997.10-76,098.90

Finding the Fourth Proportional to 289,331.40, 433,997.10 and 76,098.90

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Solution

The fourth proportional to 289,331.40, 433,997.10 and 76,098.90 is: 114,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,331.40 : 433,997.10 = 76,098.90 : x
  2. Step 2: Convert to fraction form
    289,331.40/433,997.10 = 76,098.90/x
  3. Step 3: Cross multiply
    289,331.40x = 433,997.10 × 76,098.90
  4. Step 4: Simplify right side
    289,331.40x = 33,026,701,913.19
  5. Step 5: Solve for x
    x = 33,026,701,913.19/289,331.40
  6. Step 6: Final answer
    x = 114,148.35

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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.