Home / 693,451.40-1,040,177.10-457,255.40

Finding the Fourth Proportional to 693,451.40, 1,040,177.10 and 457,255.40

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Solution

The fourth proportional to 693,451.40, 1,040,177.10 and 457,255.40 is: 685,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,451.40 : 1,040,177.10 = 457,255.40 : x
  2. Step 2: Convert to fraction form
    693,451.40/1,040,177.10 = 457,255.40/x
  3. Step 3: Cross multiply
    693,451.40x = 1,040,177.10 × 457,255.40
  4. Step 4: Simplify right side
    693,451.40x = 475,626,595,931.34
  5. Step 5: Solve for x
    x = 475,626,595,931.34/693,451.40
  6. Step 6: Final answer
    x = 685,883.10

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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.