Home / 659,089.80-909,583.20-372,636.36

Finding the Fourth Proportional to 659,089.80, 909,583.20 and 372,636.36

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Solution

The fourth proportional to 659,089.80, 909,583.20 and 372,636.36 is: 514,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,089.80 : 909,583.20 = 372,636.36 : x
  2. Step 2: Convert to fraction form
    659,089.80/909,583.20 = 372,636.36/x
  3. Step 3: Cross multiply
    659,089.80x = 909,583.20 × 372,636.36
  4. Step 4: Simplify right side
    659,089.80x = 338,943,772,765.15
  5. Step 5: Solve for x
    x = 338,943,772,765.15/659,089.80
  6. Step 6: Final answer
    x = 514,260.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.