Home / 1,065,965.30-1,596,874.35-643,987.70

Finding the Fourth Proportional to 1,065,965.30, 1,596,874.35 and 643,987.70

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Solution

The fourth proportional to 1,065,965.30, 1,596,874.35 and 643,987.70 is: 964,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,965.30 : 1,596,874.35 = 643,987.70 : x
  2. Step 2: Convert to fraction form
    1,065,965.30/1,596,874.35 = 643,987.70/x
  3. Step 3: Cross multiply
    1,065,965.30x = 1,596,874.35 × 643,987.70
  4. Step 4: Simplify right side
    1,065,965.30x = 1,028,367,439,845.50
  5. Step 5: Solve for x
    x = 1,028,367,439,845.50/1,065,965.30
  6. Step 6: Final answer
    x = 964,728.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.