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Finding the Fourth Proportional to 302,548.80, 453,628.80 and 125,126.40

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Solution

The fourth proportional to 302,548.80, 453,628.80 and 125,126.40 is: 187,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,548.80 : 453,628.80 = 125,126.40 : x
  2. Step 2: Convert to fraction form
    302,548.80/453,628.80 = 125,126.40/x
  3. Step 3: Cross multiply
    302,548.80x = 453,628.80 × 125,126.40
  4. Step 4: Simplify right side
    302,548.80x = 56,760,938,680.32
  5. Step 5: Solve for x
    x = 56,760,938,680.32/302,548.80
  6. Step 6: Final answer
    x = 187,609.20

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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.