Home / 762,651.40-1,143,977.10-194,031.40

Finding the Fourth Proportional to 762,651.40, 1,143,977.10 and 194,031.40

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Solution

The fourth proportional to 762,651.40, 1,143,977.10 and 194,031.40 is: 291,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,651.40 : 1,143,977.10 = 194,031.40 : x
  2. Step 2: Convert to fraction form
    762,651.40/1,143,977.10 = 194,031.40/x
  3. Step 3: Cross multiply
    762,651.40x = 1,143,977.10 × 194,031.40
  4. Step 4: Simplify right side
    762,651.40x = 221,967,478,280.94
  5. Step 5: Solve for x
    x = 221,967,478,280.94/762,651.40
  6. Step 6: Final answer
    x = 291,047.10

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