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Finding the Fourth Proportional to 562,958.54, 776,938.25 and 321,277.49

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Solution

The fourth proportional to 562,958.54, 776,938.25 and 321,277.49 is: 443,394.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,958.54 : 776,938.25 = 321,277.49 : x
  2. Step 2: Convert to fraction form
    562,958.54/776,938.25 = 321,277.49/x
  3. Step 3: Cross multiply
    562,958.54x = 776,938.25 × 321,277.49
  4. Step 4: Simplify right side
    562,958.54x = 249,612,768,869.83
  5. Step 5: Solve for x
    x = 249,612,768,869.83/562,958.54
  6. Step 6: Final answer
    x = 443,394.59

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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.