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Finding the Fourth Proportional to 932,213, 1,286,455.38 and 529,805

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Solution

The fourth proportional to 932,213, 1,286,455.38 and 529,805 is: 731,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,213 : 1,286,455.38 = 529,805 : x
  2. Step 2: Convert to fraction form
    932,213/1,286,455.38 = 529,805/x
  3. Step 3: Cross multiply
    932,213x = 1,286,455.38 × 529,805
  4. Step 4: Simplify right side
    932,213x = 681,570,492,600.90
  5. Step 5: Solve for x
    x = 681,570,492,600.90/932,213
  6. Step 6: Final answer
    x = 731,131.72

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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.