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Finding the Fourth Proportional to 303,342.32, 418,649.43 and 174,280.50

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Solution

The fourth proportional to 303,342.32, 418,649.43 and 174,280.50 is: 240,528.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,342.32 : 418,649.43 = 174,280.50 : x
  2. Step 2: Convert to fraction form
    303,342.32/418,649.43 = 174,280.50/x
  3. Step 3: Cross multiply
    303,342.32x = 418,649.43 × 174,280.50
  4. Step 4: Simplify right side
    303,342.32x = 72,962,431,985.12
  5. Step 5: Solve for x
    x = 72,962,431,985.12/303,342.32
  6. Step 6: Final answer
    x = 240,528.37

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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.