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Finding the Fourth Proportional to 317,763.84, 438,513.84 and 174,527.76

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Solution

The fourth proportional to 317,763.84, 438,513.84 and 174,527.76 is: 240,848.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,763.84 : 438,513.84 = 174,527.76 : x
  2. Step 2: Convert to fraction form
    317,763.84/438,513.84 = 174,527.76/x
  3. Step 3: Cross multiply
    317,763.84x = 438,513.84 × 174,527.76
  4. Step 4: Simplify right side
    317,763.84x = 76,532,838,224.20
  5. Step 5: Solve for x
    x = 76,532,838,224.20/317,763.84
  6. Step 6: Final answer
    x = 240,848.17

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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.