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Finding the Fourth Proportional to 357,266.66, 535,399.50 and 268,463.48

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Solution

The fourth proportional to 357,266.66, 535,399.50 and 268,463.48 is: 402,319.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,266.66 : 535,399.50 = 268,463.48 : x
  2. Step 2: Convert to fraction form
    357,266.66/535,399.50 = 268,463.48/x
  3. Step 3: Cross multiply
    357,266.66x = 535,399.50 × 268,463.48
  4. Step 4: Simplify right side
    357,266.66x = 143,735,212,960.26
  5. Step 5: Solve for x
    x = 143,735,212,960.26/357,266.66
  6. Step 6: Final answer
    x = 402,319.13

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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.