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Finding the Fourth Proportional to 613,066.52, 919,600.28 and 293,143.10

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Solution

The fourth proportional to 613,066.52, 919,600.28 and 293,143.10 is: 439,714.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,066.52 : 919,600.28 = 293,143.10 : x
  2. Step 2: Convert to fraction form
    613,066.52/919,600.28 = 293,143.10/x
  3. Step 3: Cross multiply
    613,066.52x = 919,600.28 × 293,143.10
  4. Step 4: Simplify right side
    613,066.52x = 269,574,476,840.07
  5. Step 5: Solve for x
    x = 269,574,476,840.07/613,066.52
  6. Step 6: Final answer
    x = 439,714.89

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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.