Home / 1,178,139.30-1,625,840.01-668,850.18

Finding the Fourth Proportional to 1,178,139.30, 1,625,840.01 and 668,850.18

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Solution

The fourth proportional to 1,178,139.30, 1,625,840.01 and 668,850.18 is: 923,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,139.30 : 1,625,840.01 = 668,850.18 : x
  2. Step 2: Convert to fraction form
    1,178,139.30/1,625,840.01 = 668,850.18/x
  3. Step 3: Cross multiply
    1,178,139.30x = 1,625,840.01 × 668,850.18
  4. Step 4: Simplify right side
    1,178,139.30x = 1,087,443,383,339.70
  5. Step 5: Solve for x
    x = 1,087,443,383,339.70/1,178,139.30
  6. Step 6: Final answer
    x = 923,017.66

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1.5x scale

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.