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Finding the Fourth Proportional to 311,267.60, 466,901.40 and 308,934.80

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Solution

The fourth proportional to 311,267.60, 466,901.40 and 308,934.80 is: 463,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,267.60 : 466,901.40 = 308,934.80 : x
  2. Step 2: Convert to fraction form
    311,267.60/466,901.40 = 308,934.80/x
  3. Step 3: Cross multiply
    311,267.60x = 466,901.40 × 308,934.80
  4. Step 4: Simplify right side
    311,267.60x = 144,242,090,628.72
  5. Step 5: Solve for x
    x = 144,242,090,628.72/311,267.60
  6. Step 6: Final answer
    x = 463,402.20

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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.