Home / 1,137,139.12-1,569,276.48-627,873.76

Finding the Fourth Proportional to 1,137,139.12, 1,569,276.48 and 627,873.76

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Solution

The fourth proportional to 1,137,139.12, 1,569,276.48 and 627,873.76 is: 866,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,139.12 : 1,569,276.48 = 627,873.76 : x
  2. Step 2: Convert to fraction form
    1,137,139.12/1,569,276.48 = 627,873.76/x
  3. Step 3: Cross multiply
    1,137,139.12x = 1,569,276.48 × 627,873.76
  4. Step 4: Simplify right side
    1,137,139.12x = 985,307,523,977.17
  5. Step 5: Solve for x
    x = 985,307,523,977.17/1,137,139.12
  6. Step 6: Final answer
    x = 866,479.31

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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.