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Finding the Fourth Proportional to 369,077.80, 553,616.70 and 119,759.80

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Solution

The fourth proportional to 369,077.80, 553,616.70 and 119,759.80 is: 179,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,077.80 : 553,616.70 = 119,759.80 : x
  2. Step 2: Convert to fraction form
    369,077.80/553,616.70 = 119,759.80/x
  3. Step 3: Cross multiply
    369,077.80x = 553,616.70 × 119,759.80
  4. Step 4: Simplify right side
    369,077.80x = 66,301,025,268.66
  5. Step 5: Solve for x
    x = 66,301,025,268.66/369,077.80
  6. Step 6: Final answer
    x = 179,639.70

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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.