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Finding the Fourth Proportional to 448,061.38, 617,909.40 and 327,010.94

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Solution

The fourth proportional to 448,061.38, 617,909.40 and 327,010.94 is: 450,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,061.38 : 617,909.40 = 327,010.94 : x
  2. Step 2: Convert to fraction form
    448,061.38/617,909.40 = 327,010.94/x
  3. Step 3: Cross multiply
    448,061.38x = 617,909.40 × 327,010.94
  4. Step 4: Simplify right side
    448,061.38x = 202,063,133,728.84
  5. Step 5: Solve for x
    x = 202,063,133,728.84/448,061.38
  6. Step 6: Final answer
    x = 450,971.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.