Home / 819,329.40-1,228,994.10-483,406.20

Finding the Fourth Proportional to 819,329.40, 1,228,994.10 and 483,406.20

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Solution

The fourth proportional to 819,329.40, 1,228,994.10 and 483,406.20 is: 725,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,329.40 : 1,228,994.10 = 483,406.20 : x
  2. Step 2: Convert to fraction form
    819,329.40/1,228,994.10 = 483,406.20/x
  3. Step 3: Cross multiply
    819,329.40x = 1,228,994.10 × 483,406.20
  4. Step 4: Simplify right side
    819,329.40x = 594,103,367,703.42
  5. Step 5: Solve for x
    x = 594,103,367,703.42/819,329.40
  6. Step 6: Final answer
    x = 725,109.30

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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.