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Finding the Fourth Proportional to 256,259.70, 384,389.55 and 177,527.70

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Solution

The fourth proportional to 256,259.70, 384,389.55 and 177,527.70 is: 266,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,259.70 : 384,389.55 = 177,527.70 : x
  2. Step 2: Convert to fraction form
    256,259.70/384,389.55 = 177,527.70/x
  3. Step 3: Cross multiply
    256,259.70x = 384,389.55 × 177,527.70
  4. Step 4: Simplify right side
    256,259.70x = 68,239,792,715.54
  5. Step 5: Solve for x
    x = 68,239,792,715.54/256,259.70
  6. Step 6: Final answer
    x = 266,291.55

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1.5x scale

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.