Home / 881,036.80-1,321,555.20-615,316.30

Finding the Fourth Proportional to 881,036.80, 1,321,555.20 and 615,316.30

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Solution

The fourth proportional to 881,036.80, 1,321,555.20 and 615,316.30 is: 922,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,036.80 : 1,321,555.20 = 615,316.30 : x
  2. Step 2: Convert to fraction form
    881,036.80/1,321,555.20 = 615,316.30/x
  3. Step 3: Cross multiply
    881,036.80x = 1,321,555.20 × 615,316.30
  4. Step 4: Simplify right side
    881,036.80x = 813,174,455,909.76
  5. Step 5: Solve for x
    x = 813,174,455,909.76/881,036.80
  6. Step 6: Final answer
    x = 922,974.45

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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.