Home / 658,333.56-987,534.50-209,089.59

Finding the Fourth Proportional to 658,333.56, 987,534.50 and 209,089.59

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Solution

The fourth proportional to 658,333.56, 987,534.50 and 209,089.59 is: 313,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,333.56 : 987,534.50 = 209,089.59 : x
  2. Step 2: Convert to fraction form
    658,333.56/987,534.50 = 209,089.59/x
  3. Step 3: Cross multiply
    658,333.56x = 987,534.50 × 209,089.59
  4. Step 4: Simplify right side
    658,333.56x = 206,483,182,670.41
  5. Step 5: Solve for x
    x = 206,483,182,670.41/658,333.56
  6. Step 6: Final answer
    x = 313,645.23

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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.