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Finding the Fourth Proportional to 613,068.52, 919,603.28 and 293,145.10

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Solution

The fourth proportional to 613,068.52, 919,603.28 and 293,145.10 is: 439,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,068.52 : 919,603.28 = 293,145.10 : x
  2. Step 2: Convert to fraction form
    613,068.52/919,603.28 = 293,145.10/x
  3. Step 3: Cross multiply
    613,068.52x = 919,603.28 × 293,145.10
  4. Step 4: Simplify right side
    613,068.52x = 269,577,195,475.93
  5. Step 5: Solve for x
    x = 269,577,195,475.93/613,068.52
  6. Step 6: Final answer
    x = 439,717.89

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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.