Home / 1,013,781.60-1,398,872.16-561,071.52

Finding the Fourth Proportional to 1,013,781.60, 1,398,872.16 and 561,071.52

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Solution

The fourth proportional to 1,013,781.60, 1,398,872.16 and 561,071.52 is: 774,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,781.60 : 1,398,872.16 = 561,071.52 : x
  2. Step 2: Convert to fraction form
    1,013,781.60/1,398,872.16 = 561,071.52/x
  3. Step 3: Cross multiply
    1,013,781.60x = 1,398,872.16 × 561,071.52
  4. Step 4: Simplify right side
    1,013,781.60x = 784,867,329,096.88
  5. Step 5: Solve for x
    x = 784,867,329,096.88/1,013,781.60
  6. Step 6: Final answer
    x = 774,197.65

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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.