Home / 723,939.40-1,085,909.10-606,716.20

Finding the Fourth Proportional to 723,939.40, 1,085,909.10 and 606,716.20

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Solution

The fourth proportional to 723,939.40, 1,085,909.10 and 606,716.20 is: 910,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,939.40 : 1,085,909.10 = 606,716.20 : x
  2. Step 2: Convert to fraction form
    723,939.40/1,085,909.10 = 606,716.20/x
  3. Step 3: Cross multiply
    723,939.40x = 1,085,909.10 × 606,716.20
  4. Step 4: Simplify right side
    723,939.40x = 658,838,642,697.42
  5. Step 5: Solve for x
    x = 658,838,642,697.42/723,939.40
  6. Step 6: Final answer
    x = 910,074.30

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Half scale
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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.