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Finding the Fourth Proportional to 368,665.20, 552,478.32 and 293,450.76

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Solution

The fourth proportional to 368,665.20, 552,478.32 and 293,450.76 is: 439,762.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,665.20 : 552,478.32 = 293,450.76 : x
  2. Step 2: Convert to fraction form
    368,665.20/552,478.32 = 293,450.76/x
  3. Step 3: Cross multiply
    368,665.20x = 552,478.32 × 293,450.76
  4. Step 4: Simplify right side
    368,665.20x = 162,125,182,887.52
  5. Step 5: Solve for x
    x = 162,125,182,887.52/368,665.20
  6. Step 6: Final answer
    x = 439,762.64

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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.