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Finding the Fourth Proportional to 418,681.90, 577,768.67 and 237,410.38

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Solution

The fourth proportional to 418,681.90, 577,768.67 and 237,410.38 is: 327,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,681.90 : 577,768.67 = 237,410.38 : x
  2. Step 2: Convert to fraction form
    418,681.90/577,768.67 = 237,410.38/x
  3. Step 3: Cross multiply
    418,681.90x = 577,768.67 × 237,410.38
  4. Step 4: Simplify right side
    418,681.90x = 137,168,277,340.01
  5. Step 5: Solve for x
    x = 137,168,277,340.01/418,681.90
  6. Step 6: Final answer
    x = 327,619.32

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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.