Home / 778,865.80-1,167,837.90-405,617.80

Finding the Fourth Proportional to 778,865.80, 1,167,837.90 and 405,617.80

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Solution

The fourth proportional to 778,865.80, 1,167,837.90 and 405,617.80 is: 608,186.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,865.80 : 1,167,837.90 = 405,617.80 : x
  2. Step 2: Convert to fraction form
    778,865.80/1,167,837.90 = 405,617.80/x
  3. Step 3: Cross multiply
    778,865.80x = 1,167,837.90 × 405,617.80
  4. Step 4: Simplify right side
    778,865.80x = 473,695,839,754.62
  5. Step 5: Solve for x
    x = 473,695,839,754.62/778,865.80
  6. Step 6: Final answer
    x = 608,186.72

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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.