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Finding the Fourth Proportional to 523,293.76, 722,085.78 and 293,820.34

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Solution

The fourth proportional to 523,293.76, 722,085.78 and 293,820.34 is: 405,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,293.76 : 722,085.78 = 293,820.34 : x
  2. Step 2: Convert to fraction form
    523,293.76/722,085.78 = 293,820.34/x
  3. Step 3: Cross multiply
    523,293.76x = 722,085.78 × 293,820.34
  4. Step 4: Simplify right side
    523,293.76x = 212,163,489,388.77
  5. Step 5: Solve for x
    x = 212,163,489,388.77/523,293.76
  6. Step 6: Final answer
    x = 405,438.60

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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.