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Finding the Fourth Proportional to 427,718.88, 590,316.66 and 246,457.62

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Solution

The fourth proportional to 427,718.88, 590,316.66 and 246,457.62 is: 340,148.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,718.88 : 590,316.66 = 246,457.62 : x
  2. Step 2: Convert to fraction form
    427,718.88/590,316.66 = 246,457.62/x
  3. Step 3: Cross multiply
    427,718.88x = 590,316.66 × 246,457.62
  4. Step 4: Simplify right side
    427,718.88x = 145,488,039,069.95
  5. Step 5: Solve for x
    x = 145,488,039,069.95/427,718.88
  6. Step 6: Final answer
    x = 340,148.74

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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.