Home / 811,486.88-1,119,474.56-525,099.52

Finding the Fourth Proportional to 811,486.88, 1,119,474.56 and 525,099.52

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Solution

The fourth proportional to 811,486.88, 1,119,474.56 and 525,099.52 is: 724,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,486.88 : 1,119,474.56 = 525,099.52 : x
  2. Step 2: Convert to fraction form
    811,486.88/1,119,474.56 = 525,099.52/x
  3. Step 3: Cross multiply
    811,486.88x = 1,119,474.56 × 525,099.52
  4. Step 4: Simplify right side
    811,486.88x = 587,835,554,108.21
  5. Step 5: Solve for x
    x = 587,835,554,108.21/811,486.88
  6. Step 6: Final answer
    x = 724,393.17

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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.