Home / 1,287,106.50-1,930,773.20-477,500.29

Finding the Fourth Proportional to 1,287,106.50, 1,930,773.20 and 477,500.29

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Solution

The fourth proportional to 1,287,106.50, 1,930,773.20 and 477,500.29 is: 716,292.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,106.50 : 1,930,773.20 = 477,500.29 : x
  2. Step 2: Convert to fraction form
    1,287,106.50/1,930,773.20 = 477,500.29/x
  3. Step 3: Cross multiply
    1,287,106.50x = 1,930,773.20 × 477,500.29
  4. Step 4: Simplify right side
    1,287,106.50x = 921,944,762,924.23
  5. Step 5: Solve for x
    x = 921,944,762,924.23/1,287,106.50
  6. Step 6: Final answer
    x = 716,292.52

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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.