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Finding the Fourth Proportional to 292,503.32, 438,754.97 and 70,887.32

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Solution

The fourth proportional to 292,503.32, 438,754.97 and 70,887.32 is: 106,330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,503.32 : 438,754.97 = 70,887.32 : x
  2. Step 2: Convert to fraction form
    292,503.32/438,754.97 = 70,887.32/x
  3. Step 3: Cross multiply
    292,503.32x = 438,754.97 × 70,887.32
  4. Step 4: Simplify right side
    292,503.32x = 31,102,161,766.21
  5. Step 5: Solve for x
    x = 31,102,161,766.21/292,503.32
  6. Step 6: Final answer
    x = 106,330.97

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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.