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Finding the Fourth Proportional to 292,498.92, 438,744.54 and 70,884.84

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Solution

The fourth proportional to 292,498.92, 438,744.54 and 70,884.84 is: 106,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,498.92 : 438,744.54 = 70,884.84 : x
  2. Step 2: Convert to fraction form
    292,498.92/438,744.54 = 70,884.84/x
  3. Step 3: Cross multiply
    292,498.92x = 438,744.54 × 70,884.84
  4. Step 4: Simplify right side
    292,498.92x = 31,100,336,518.77
  5. Step 5: Solve for x
    x = 31,100,336,518.77/292,498.92
  6. Step 6: Final answer
    x = 106,326.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.