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Finding the Fourth Proportional to 448,967.40, 674,228.70 and 239,015.40

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Solution

The fourth proportional to 448,967.40, 674,228.70 and 239,015.40 is: 358,937.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,967.40 : 674,228.70 = 239,015.40 : x
  2. Step 2: Convert to fraction form
    448,967.40/674,228.70 = 239,015.40/x
  3. Step 3: Cross multiply
    448,967.40x = 674,228.70 × 239,015.40
  4. Step 4: Simplify right side
    448,967.40x = 161,151,042,421.98
  5. Step 5: Solve for x
    x = 161,151,042,421.98/448,967.40
  6. Step 6: Final answer
    x = 358,937.07

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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.