Home / 579,438.30-869,200.65-205,412.70

Finding the Fourth Proportional to 579,438.30, 869,200.65 and 205,412.70

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Solution

The fourth proportional to 579,438.30, 869,200.65 and 205,412.70 is: 308,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,438.30 : 869,200.65 = 205,412.70 : x
  2. Step 2: Convert to fraction form
    579,438.30/869,200.65 = 205,412.70/x
  3. Step 3: Cross multiply
    579,438.30x = 869,200.65 × 205,412.70
  4. Step 4: Simplify right side
    579,438.30x = 178,544,852,358.26
  5. Step 5: Solve for x
    x = 178,544,852,358.26/579,438.30
  6. Step 6: Final answer
    x = 308,134.36

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1.5x scale

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.