Home / 1,386,862.60-2,080,658.40-440,231.80

Finding the Fourth Proportional to 1,386,862.60, 2,080,658.40 and 440,231.80

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Solution

The fourth proportional to 1,386,862.60, 2,080,658.40 and 440,231.80 is: 660,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,862.60 : 2,080,658.40 = 440,231.80 : x
  2. Step 2: Convert to fraction form
    1,386,862.60/2,080,658.40 = 440,231.80/x
  3. Step 3: Cross multiply
    1,386,862.60x = 2,080,658.40 × 440,231.80
  4. Step 4: Simplify right side
    1,386,862.60x = 915,971,992,617.12
  5. Step 5: Solve for x
    x = 915,971,992,617.12/1,386,862.60
  6. Step 6: Final answer
    x = 660,463.40

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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.