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Finding the Fourth Proportional to 317,660.66, 438,386.01 and 190,333.52

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Solution

The fourth proportional to 317,660.66, 438,386.01 and 190,333.52 is: 262,668.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,660.66 : 438,386.01 = 190,333.52 : x
  2. Step 2: Convert to fraction form
    317,660.66/438,386.01 = 190,333.52/x
  3. Step 3: Cross multiply
    317,660.66x = 438,386.01 × 190,333.52
  4. Step 4: Simplify right side
    317,660.66x = 83,439,552,402.06
  5. Step 5: Solve for x
    x = 83,439,552,402.06/317,660.66
  6. Step 6: Final answer
    x = 262,668.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.