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Finding the Fourth Proportional to 499,402.14, 749,636.28 and 215,232.92

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Solution

The fourth proportional to 499,402.14, 749,636.28 and 215,232.92 is: 323,079.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,402.14 : 749,636.28 = 215,232.92 : x
  2. Step 2: Convert to fraction form
    499,402.14/749,636.28 = 215,232.92/x
  3. Step 3: Cross multiply
    499,402.14x = 749,636.28 × 215,232.92
  4. Step 4: Simplify right side
    499,402.14x = 161,346,405,482.34
  5. Step 5: Solve for x
    x = 161,346,405,482.34/499,402.14
  6. Step 6: Final answer
    x = 323,079.12

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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.