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Finding the Fourth Proportional to 562,968.76, 776,952.35 and 321,287.71

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Solution

The fourth proportional to 562,968.76, 776,952.35 and 321,287.71 is: 443,408.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,968.76 : 776,952.35 = 321,287.71 : x
  2. Step 2: Convert to fraction form
    562,968.76/776,952.35 = 321,287.71/x
  3. Step 3: Cross multiply
    562,968.76x = 776,952.35 × 321,287.71
  4. Step 4: Simplify right side
    562,968.76x = 249,625,240,171.46
  5. Step 5: Solve for x
    x = 249,625,240,171.46/562,968.76
  6. Step 6: Final answer
    x = 443,408.69

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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.