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Finding the Fourth Proportional to 621,740.20, 932,610.30 and 248,031.40

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Solution

The fourth proportional to 621,740.20, 932,610.30 and 248,031.40 is: 372,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,740.20 : 932,610.30 = 248,031.40 : x
  2. Step 2: Convert to fraction form
    621,740.20/932,610.30 = 248,031.40/x
  3. Step 3: Cross multiply
    621,740.20x = 932,610.30 × 248,031.40
  4. Step 4: Simplify right side
    621,740.20x = 231,316,638,363.42
  5. Step 5: Solve for x
    x = 231,316,638,363.42/621,740.20
  6. Step 6: Final answer
    x = 372,047.10

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Similar ratio
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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.