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Finding the Fourth Proportional to 369,159.80, 553,739.70 and 365,660.60

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Solution

The fourth proportional to 369,159.80, 553,739.70 and 365,660.60 is: 548,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,159.80 : 553,739.70 = 365,660.60 : x
  2. Step 2: Convert to fraction form
    369,159.80/553,739.70 = 365,660.60/x
  3. Step 3: Cross multiply
    369,159.80x = 553,739.70 × 365,660.60
  4. Step 4: Simplify right side
    369,159.80x = 202,480,790,945.82
  5. Step 5: Solve for x
    x = 202,480,790,945.82/369,159.80
  6. Step 6: Final answer
    x = 548,490.90

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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.