Home / 1,886,581.60-2,829,872.40-1,319,711.20

Finding the Fourth Proportional to 1,886,581.60, 2,829,872.40 and 1,319,711.20

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Solution

The fourth proportional to 1,886,581.60, 2,829,872.40 and 1,319,711.20 is: 1,979,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886,581.60 : 2,829,872.40 = 1,319,711.20 : x
  2. Step 2: Convert to fraction form
    1,886,581.60/2,829,872.40 = 1,319,711.20/x
  3. Step 3: Cross multiply
    1,886,581.60x = 2,829,872.40 × 1,319,711.20
  4. Step 4: Simplify right side
    1,886,581.60x = 3,734,614,300,850.88
  5. Step 5: Solve for x
    x = 3,734,614,300,850.88/1,886,581.60
  6. Step 6: Final answer
    x = 1,979,566.80

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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.