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Finding the Fourth Proportional to 293,213.40, 439,820.10 and 291,463.80

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Solution

The fourth proportional to 293,213.40, 439,820.10 and 291,463.80 is: 437,195.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,213.40 : 439,820.10 = 291,463.80 : x
  2. Step 2: Convert to fraction form
    293,213.40/439,820.10 = 291,463.80/x
  3. Step 3: Cross multiply
    293,213.40x = 439,820.10 × 291,463.80
  4. Step 4: Simplify right side
    293,213.40x = 128,191,637,662.38
  5. Step 5: Solve for x
    x = 128,191,637,662.38/293,213.40
  6. Step 6: Final answer
    x = 437,195.70

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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.