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Finding the Fourth Proportional to 682,821.50, 942,293.70 and 376,897.95

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Solution

The fourth proportional to 682,821.50, 942,293.70 and 376,897.95 is: 520,119.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,821.50 : 942,293.70 = 376,897.95 : x
  2. Step 2: Convert to fraction form
    682,821.50/942,293.70 = 376,897.95/x
  3. Step 3: Cross multiply
    682,821.50x = 942,293.70 × 376,897.95
  4. Step 4: Simplify right side
    682,821.50x = 355,148,563,827.92
  5. Step 5: Solve for x
    x = 355,148,563,827.92/682,821.50
  6. Step 6: Final answer
    x = 520,119.19

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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.