Home / 613,089.55-845,584.28-398,298.82

Finding the Fourth Proportional to 613,089.55, 845,584.28 and 398,298.82

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Solution

The fourth proportional to 613,089.55, 845,584.28 and 398,298.82 is: 549,340.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,089.55 : 845,584.28 = 398,298.82 : x
  2. Step 2: Convert to fraction form
    613,089.55/845,584.28 = 398,298.82/x
  3. Step 3: Cross multiply
    613,089.55x = 845,584.28 × 398,298.82
  4. Step 4: Simplify right side
    613,089.55x = 336,795,220,934.55
  5. Step 5: Solve for x
    x = 336,795,220,934.55/613,089.55
  6. Step 6: Final answer
    x = 549,340.99

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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.