Home / 1,386,393.60-2,079,590.40-439,838.40

Finding the Fourth Proportional to 1,386,393.60, 2,079,590.40 and 439,838.40

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Solution

The fourth proportional to 1,386,393.60, 2,079,590.40 and 439,838.40 is: 659,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,393.60 : 2,079,590.40 = 439,838.40 : x
  2. Step 2: Convert to fraction form
    1,386,393.60/2,079,590.40 = 439,838.40/x
  3. Step 3: Cross multiply
    1,386,393.60x = 2,079,590.40 × 439,838.40
  4. Step 4: Simplify right side
    1,386,393.60x = 914,683,714,191.36
  5. Step 5: Solve for x
    x = 914,683,714,191.36/1,386,393.60
  6. Step 6: Final answer
    x = 659,757.60

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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.