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Finding the Fourth Proportional to 338,637.72, 508,055.40 and 151,605.48

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Solution

The fourth proportional to 338,637.72, 508,055.40 and 151,605.48 is: 227,452.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,637.72 : 508,055.40 = 151,605.48 : x
  2. Step 2: Convert to fraction form
    338,637.72/508,055.40 = 151,605.48/x
  3. Step 3: Cross multiply
    338,637.72x = 508,055.40 × 151,605.48
  4. Step 4: Simplify right side
    338,637.72x = 77,023,982,783.59
  5. Step 5: Solve for x
    x = 77,023,982,783.59/338,637.72
  6. Step 6: Final answer
    x = 227,452.46

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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.