Home / 344,000.80-516,001.20-209,281.60

Finding the Fourth Proportional to 344,000.80, 516,001.20 and 209,281.60

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Solution

The fourth proportional to 344,000.80, 516,001.20 and 209,281.60 is: 313,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,000.80 : 516,001.20 = 209,281.60 : x
  2. Step 2: Convert to fraction form
    344,000.80/516,001.20 = 209,281.60/x
  3. Step 3: Cross multiply
    344,000.80x = 516,001.20 × 209,281.60
  4. Step 4: Simplify right side
    344,000.80x = 107,989,556,737.92
  5. Step 5: Solve for x
    x = 107,989,556,737.92/344,000.80
  6. Step 6: Final answer
    x = 313,922.40

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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.