Home / 404,001.20-606,001.80-235,711.55

Finding the Fourth Proportional to 404,001.20, 606,001.80 and 235,711.55

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Solution

The fourth proportional to 404,001.20, 606,001.80 and 235,711.55 is: 353,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,001.20 : 606,001.80 = 235,711.55 : x
  2. Step 2: Convert to fraction form
    404,001.20/606,001.80 = 235,711.55/x
  3. Step 3: Cross multiply
    404,001.20x = 606,001.80 × 235,711.55
  4. Step 4: Simplify right side
    404,001.20x = 142,841,623,580.79
  5. Step 5: Solve for x
    x = 142,841,623,580.79/404,001.20
  6. Step 6: Final answer
    x = 353,567.33

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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.