Home / 917,839.80-1,376,286.93-411,967.13

Finding the Fourth Proportional to 917,839.80, 1,376,286.93 and 411,967.13

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Solution

The fourth proportional to 917,839.80, 1,376,286.93 and 411,967.13 is: 617,738.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,839.80 : 1,376,286.93 = 411,967.13 : x
  2. Step 2: Convert to fraction form
    917,839.80/1,376,286.93 = 411,967.13/x
  3. Step 3: Cross multiply
    917,839.80x = 1,376,286.93 × 411,967.13
  4. Step 4: Simplify right side
    917,839.80x = 566,984,969,727.18
  5. Step 5: Solve for x
    x = 566,984,969,727.18/917,839.80
  6. Step 6: Final answer
    x = 617,738.49

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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.