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Finding the Fourth Proportional to 519,541.67, 779,169.54 and 177,980.06

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Solution

The fourth proportional to 519,541.67, 779,169.54 and 177,980.06 is: 266,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,541.67 : 779,169.54 = 177,980.06 : x
  2. Step 2: Convert to fraction form
    519,541.67/779,169.54 = 177,980.06/x
  3. Step 3: Cross multiply
    519,541.67x = 779,169.54 × 177,980.06
  4. Step 4: Simplify right side
    519,541.67x = 138,676,641,479.37
  5. Step 5: Solve for x
    x = 138,676,641,479.37/519,541.67
  6. Step 6: Final answer
    x = 266,921.11

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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.