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Finding the Fourth Proportional to 328,264.40, 453,057.72 and 247,782.80

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Solution

The fourth proportional to 328,264.40, 453,057.72 and 247,782.80 is: 341,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,264.40 : 453,057.72 = 247,782.80 : x
  2. Step 2: Convert to fraction form
    328,264.40/453,057.72 = 247,782.80/x
  3. Step 3: Cross multiply
    328,264.40x = 453,057.72 × 247,782.80
  4. Step 4: Simplify right side
    328,264.40x = 112,259,910,423.22
  5. Step 5: Solve for x
    x = 112,259,910,423.22/328,264.40
  6. Step 6: Final answer
    x = 341,980.16

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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.