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Finding the Fourth Proportional to 355,329.20, 532,993.80 and 236,356.40

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Solution

The fourth proportional to 355,329.20, 532,993.80 and 236,356.40 is: 354,534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,329.20 : 532,993.80 = 236,356.40 : x
  2. Step 2: Convert to fraction form
    355,329.20/532,993.80 = 236,356.40/x
  3. Step 3: Cross multiply
    355,329.20x = 532,993.80 × 236,356.40
  4. Step 4: Simplify right side
    355,329.20x = 125,976,495,790.32
  5. Step 5: Solve for x
    x = 125,976,495,790.32/355,329.20
  6. Step 6: Final answer
    x = 354,534.60

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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.