Home / 854,214.65-1,179,113.07-491,782.95

Finding the Fourth Proportional to 854,214.65, 1,179,113.07 and 491,782.95

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Solution

The fourth proportional to 854,214.65, 1,179,113.07 and 491,782.95 is: 678,831.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,214.65 : 1,179,113.07 = 491,782.95 : x
  2. Step 2: Convert to fraction form
    854,214.65/1,179,113.07 = 491,782.95/x
  3. Step 3: Cross multiply
    854,214.65x = 1,179,113.07 × 491,782.95
  4. Step 4: Simplify right side
    854,214.65x = 579,867,703,948.16
  5. Step 5: Solve for x
    x = 579,867,703,948.16/854,214.65
  6. Step 6: Final answer
    x = 678,831.38

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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.