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Finding the Fourth Proportional to 317,760.36, 438,509.52 and 174,527.52

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Solution

The fourth proportional to 317,760.36, 438,509.52 and 174,527.52 is: 240,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,760.36 : 438,509.52 = 174,527.52 : x
  2. Step 2: Convert to fraction form
    317,760.36/438,509.52 = 174,527.52/x
  3. Step 3: Cross multiply
    317,760.36x = 438,509.52 × 174,527.52
  4. Step 4: Simplify right side
    317,760.36x = 76,531,979,021.99
  5. Step 5: Solve for x
    x = 76,531,979,021.99/317,760.36
  6. Step 6: Final answer
    x = 240,848.10

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1.5x scale

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.