Home / 886,145.40-1,329,218.10-512,897.40

Finding the Fourth Proportional to 886,145.40, 1,329,218.10 and 512,897.40

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Solution

The fourth proportional to 886,145.40, 1,329,218.10 and 512,897.40 is: 769,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,145.40 : 1,329,218.10 = 512,897.40 : x
  2. Step 2: Convert to fraction form
    886,145.40/1,329,218.10 = 512,897.40/x
  3. Step 3: Cross multiply
    886,145.40x = 1,329,218.10 × 512,897.40
  4. Step 4: Simplify right side
    886,145.40x = 681,752,507,522.94
  5. Step 5: Solve for x
    x = 681,752,507,522.94/886,145.40
  6. Step 6: Final answer
    x = 769,346.10

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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.