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Finding the Fourth Proportional to 692,652.29, 1,038,978.37 and 351,042.51

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Solution

The fourth proportional to 692,652.29, 1,038,978.37 and 351,042.51 is: 526,563.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,652.29 : 1,038,978.37 = 351,042.51 : x
  2. Step 2: Convert to fraction form
    692,652.29/1,038,978.37 = 351,042.51/x
  3. Step 3: Cross multiply
    692,652.29x = 1,038,978.37 × 351,042.51
  4. Step 4: Simplify right side
    692,652.29x = 364,725,573,962.90
  5. Step 5: Solve for x
    x = 364,725,573,962.90/692,652.29
  6. Step 6: Final answer
    x = 526,563.73

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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.