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Finding the Fourth Proportional to 317,812.50, 438,581.25 and 174,574.94

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Solution

The fourth proportional to 317,812.50, 438,581.25 and 174,574.94 is: 240,913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,812.50 : 438,581.25 = 174,574.94 : x
  2. Step 2: Convert to fraction form
    317,812.50/438,581.25 = 174,574.94/x
  3. Step 3: Cross multiply
    317,812.50x = 438,581.25 × 174,574.94
  4. Step 4: Simplify right side
    317,812.50x = 76,565,293,210.97
  5. Step 5: Solve for x
    x = 76,565,293,210.97/317,812.50
  6. Step 6: Final answer
    x = 240,913.41

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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.