Home / 783,192.18-1,080,252.24-666,607.80

Finding the Fourth Proportional to 783,192.18, 1,080,252.24 and 666,607.80

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Solution

The fourth proportional to 783,192.18, 1,080,252.24 and 666,607.80 is: 919,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,192.18 : 1,080,252.24 = 666,607.80 : x
  2. Step 2: Convert to fraction form
    783,192.18/1,080,252.24 = 666,607.80/x
  3. Step 3: Cross multiply
    783,192.18x = 1,080,252.24 × 666,607.80
  4. Step 4: Simplify right side
    783,192.18x = 720,104,569,151.47
  5. Step 5: Solve for x
    x = 720,104,569,151.47/783,192.18
  6. Step 6: Final answer
    x = 919,448.11

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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.