Home / 809,246.70-1,213,870.05-557,304.30

Finding the Fourth Proportional to 809,246.70, 1,213,870.05 and 557,304.30

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Solution

The fourth proportional to 809,246.70, 1,213,870.05 and 557,304.30 is: 835,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,246.70 : 1,213,870.05 = 557,304.30 : x
  2. Step 2: Convert to fraction form
    809,246.70/1,213,870.05 = 557,304.30/x
  3. Step 3: Cross multiply
    809,246.70x = 1,213,870.05 × 557,304.30
  4. Step 4: Simplify right side
    809,246.70x = 676,494,998,506.22
  5. Step 5: Solve for x
    x = 676,494,998,506.22/809,246.70
  6. Step 6: Final answer
    x = 835,956.45

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Half scale
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Double scale
Find fourth proportional to 809,247.70, 1,213,871.55 and 557,305.30
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.