Home / 1,230,869.40-1,846,131.30-389,506.20

Finding the Fourth Proportional to 1,230,869.40, 1,846,131.30 and 389,506.20

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Solution

The fourth proportional to 1,230,869.40, 1,846,131.30 and 389,506.20 is: 584,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,869.40 : 1,846,131.30 = 389,506.20 : x
  2. Step 2: Convert to fraction form
    1,230,869.40/1,846,131.30 = 389,506.20/x
  3. Step 3: Cross multiply
    1,230,869.40x = 1,846,131.30 × 389,506.20
  4. Step 4: Simplify right side
    1,230,869.40x = 719,079,587,364.06
  5. Step 5: Solve for x
    x = 719,079,587,364.06/1,230,869.40
  6. Step 6: Final answer
    x = 584,204.62

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Double scale
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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.