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Finding the Fourth Proportional to 513,670.40, 770,275.20 and 233,043.20

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Solution

The fourth proportional to 513,670.40, 770,275.20 and 233,043.20 is: 349,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,670.40 : 770,275.20 = 233,043.20 : x
  2. Step 2: Convert to fraction form
    513,670.40/770,275.20 = 233,043.20/x
  3. Step 3: Cross multiply
    513,670.40x = 770,275.20 × 233,043.20
  4. Step 4: Simplify right side
    513,670.40x = 179,507,397,488.64
  5. Step 5: Solve for x
    x = 179,507,397,488.64/513,670.40
  6. Step 6: Final answer
    x = 349,460.27

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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.