Home / 993,788.34-1,371,919.56-688,099.08

Finding the Fourth Proportional to 993,788.34, 1,371,919.56 and 688,099.08

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Solution

The fourth proportional to 993,788.34, 1,371,919.56 and 688,099.08 is: 949,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,788.34 : 1,371,919.56 = 688,099.08 : x
  2. Step 2: Convert to fraction form
    993,788.34/1,371,919.56 = 688,099.08/x
  3. Step 3: Cross multiply
    993,788.34x = 1,371,919.56 × 688,099.08
  4. Step 4: Simplify right side
    993,788.34x = 944,016,587,070.01
  5. Step 5: Solve for x
    x = 944,016,587,070.01/993,788.34
  6. Step 6: Final answer
    x = 949,917.15

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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.