Home / 849,685.20-1,172,469.36-500,802.84

Finding the Fourth Proportional to 849,685.20, 1,172,469.36 and 500,802.84

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Solution

The fourth proportional to 849,685.20, 1,172,469.36 and 500,802.84 is: 691,051.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,685.20 : 1,172,469.36 = 500,802.84 : x
  2. Step 2: Convert to fraction form
    849,685.20/1,172,469.36 = 500,802.84/x
  3. Step 3: Cross multiply
    849,685.20x = 1,172,469.36 × 500,802.84
  4. Step 4: Simplify right side
    849,685.20x = 587,175,985,300.98
  5. Step 5: Solve for x
    x = 587,175,985,300.98/849,685.20
  6. Step 6: Final answer
    x = 691,051.21

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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.