Home / 1,005,011.18-1,386,293.28-660,886.64

Finding the Fourth Proportional to 1,005,011.18, 1,386,293.28 and 660,886.64

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Solution

The fourth proportional to 1,005,011.18, 1,386,293.28 and 660,886.64 is: 911,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,011.18 : 1,386,293.28 = 660,886.64 : x
  2. Step 2: Convert to fraction form
    1,005,011.18/1,386,293.28 = 660,886.64/x
  3. Step 3: Cross multiply
    1,005,011.18x = 1,386,293.28 × 660,886.64
  4. Step 4: Simplify right side
    1,005,011.18x = 916,182,707,873.78
  5. Step 5: Solve for x
    x = 916,182,707,873.78/1,005,011.18
  6. Step 6: Final answer
    x = 911,614.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.