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Finding the Fourth Proportional to 384,804.60, 576,550.80 and 317,882.40

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Solution

The fourth proportional to 384,804.60, 576,550.80 and 317,882.40 is: 476,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,804.60 : 576,550.80 = 317,882.40 : x
  2. Step 2: Convert to fraction form
    384,804.60/576,550.80 = 317,882.40/x
  3. Step 3: Cross multiply
    384,804.60x = 576,550.80 × 317,882.40
  4. Step 4: Simplify right side
    384,804.60x = 183,275,352,025.92
  5. Step 5: Solve for x
    x = 183,275,352,025.92/384,804.60
  6. Step 6: Final answer
    x = 476,281.60

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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.