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Finding the Fourth Proportional to 682,511.90, 941,886.13 and 376,607.98

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Solution

The fourth proportional to 682,511.90, 941,886.13 and 376,607.98 is: 519,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,511.90 : 941,886.13 = 376,607.98 : x
  2. Step 2: Convert to fraction form
    682,511.90/941,886.13 = 376,607.98/x
  3. Step 3: Cross multiply
    682,511.90x = 941,886.13 × 376,607.98
  4. Step 4: Simplify right side
    682,511.90x = 354,721,831,631.50
  5. Step 5: Solve for x
    x = 354,721,831,631.50/682,511.90
  6. Step 6: Final answer
    x = 519,729.89

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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.