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Finding the Fourth Proportional to 680,166.90, 1,021,036.05 and 365,238.90

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Solution

The fourth proportional to 680,166.90, 1,021,036.05 and 365,238.90 is: 548,280.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,166.90 : 1,021,036.05 = 365,238.90 : x
  2. Step 2: Convert to fraction form
    680,166.90/1,021,036.05 = 365,238.90/x
  3. Step 3: Cross multiply
    680,166.90x = 1,021,036.05 × 365,238.90
  4. Step 4: Simplify right side
    680,166.90x = 372,922,083,762.35
  5. Step 5: Solve for x
    x = 372,922,083,762.35/680,166.90
  6. Step 6: Final answer
    x = 548,280.26

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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.