Home / 1,319,358.28-1,977,806.22-520,646.44

Finding the Fourth Proportional to 1,319,358.28, 1,977,806.22 and 520,646.44

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Solution

The fourth proportional to 1,319,358.28, 1,977,806.22 and 520,646.44 is: 780,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,358.28 : 1,977,806.22 = 520,646.44 : x
  2. Step 2: Convert to fraction form
    1,319,358.28/1,977,806.22 = 520,646.44/x
  3. Step 3: Cross multiply
    1,319,358.28x = 1,977,806.22 × 520,646.44
  4. Step 4: Simplify right side
    1,319,358.28x = 1,029,737,767,452.86
  5. Step 5: Solve for x
    x = 1,029,737,767,452.86/1,319,358.28
  6. Step 6: Final answer
    x = 780,483.80

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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.