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Finding the Fourth Proportional to 562,558.51, 776,344.41 and 320,863.57

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Solution

The fourth proportional to 562,558.51, 776,344.41 and 320,863.57 is: 442,799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,558.51 : 776,344.41 = 320,863.57 : x
  2. Step 2: Convert to fraction form
    562,558.51/776,344.41 = 320,863.57/x
  3. Step 3: Cross multiply
    562,558.51x = 776,344.41 × 320,863.57
  4. Step 4: Simplify right side
    562,558.51x = 249,100,638,942.14
  5. Step 5: Solve for x
    x = 249,100,638,942.14/562,558.51
  6. Step 6: Final answer
    x = 442,799.52

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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.