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Finding the Fourth Proportional to 303,798.80, 455,698.20 and 185,603.60

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Solution

The fourth proportional to 303,798.80, 455,698.20 and 185,603.60 is: 278,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,798.80 : 455,698.20 = 185,603.60 : x
  2. Step 2: Convert to fraction form
    303,798.80/455,698.20 = 185,603.60/x
  3. Step 3: Cross multiply
    303,798.80x = 455,698.20 × 185,603.60
  4. Step 4: Simplify right side
    303,798.80x = 84,579,226,433.52
  5. Step 5: Solve for x
    x = 84,579,226,433.52/303,798.80
  6. Step 6: Final answer
    x = 278,405.40

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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.