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Finding the Fourth Proportional to 293,420.40, 440,130.60 and 191,943.60

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Solution

The fourth proportional to 293,420.40, 440,130.60 and 191,943.60 is: 287,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,420.40 : 440,130.60 = 191,943.60 : x
  2. Step 2: Convert to fraction form
    293,420.40/440,130.60 = 191,943.60/x
  3. Step 3: Cross multiply
    293,420.40x = 440,130.60 × 191,943.60
  4. Step 4: Simplify right side
    293,420.40x = 84,480,251,834.16
  5. Step 5: Solve for x
    x = 84,480,251,834.16/293,420.40
  6. Step 6: Final answer
    x = 287,915.40

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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.