Home / 1,920,325.08-2,879,854.38-640,579.89

Finding the Fourth Proportional to 1,920,325.08, 2,879,854.38 and 640,579.89

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Solution

The fourth proportional to 1,920,325.08, 2,879,854.38 and 640,579.89 is: 960,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,325.08 : 2,879,854.38 = 640,579.89 : x
  2. Step 2: Convert to fraction form
    1,920,325.08/2,879,854.38 = 640,579.89/x
  3. Step 3: Cross multiply
    1,920,325.08x = 2,879,854.38 × 640,579.89
  4. Step 4: Simplify right side
    1,920,325.08x = 1,844,776,801,956.42
  5. Step 5: Solve for x
    x = 1,844,776,801,956.42/1,920,325.08
  6. Step 6: Final answer
    x = 960,658.60

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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.