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Finding the Fourth Proportional to 293,208.40, 439,812.60 and 291,458.80

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Solution

The fourth proportional to 293,208.40, 439,812.60 and 291,458.80 is: 437,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,208.40 : 439,812.60 = 291,458.80 : x
  2. Step 2: Convert to fraction form
    293,208.40/439,812.60 = 291,458.80/x
  3. Step 3: Cross multiply
    293,208.40x = 439,812.60 × 291,458.80
  4. Step 4: Simplify right side
    293,208.40x = 128,187,252,620.88
  5. Step 5: Solve for x
    x = 128,187,252,620.88/293,208.40
  6. Step 6: Final answer
    x = 437,188.20

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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.