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Finding the Fourth Proportional to 276,031.32, 411,999.20 and 237,917.40

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Solution

The fourth proportional to 276,031.32, 411,999.20 and 237,917.40 is: 355,111.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,031.32 : 411,999.20 = 237,917.40 : x
  2. Step 2: Convert to fraction form
    276,031.32/411,999.20 = 237,917.40/x
  3. Step 3: Cross multiply
    276,031.32x = 411,999.20 × 237,917.40
  4. Step 4: Simplify right side
    276,031.32x = 98,021,778,466.08
  5. Step 5: Solve for x
    x = 98,021,778,466.08/276,031.32
  6. Step 6: Final answer
    x = 355,111.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.