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Finding the Fourth Proportional to 383,746.40, 575,619.60 and 361,973.60

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Solution

The fourth proportional to 383,746.40, 575,619.60 and 361,973.60 is: 542,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,746.40 : 575,619.60 = 361,973.60 : x
  2. Step 2: Convert to fraction form
    383,746.40/575,619.60 = 361,973.60/x
  3. Step 3: Cross multiply
    383,746.40x = 575,619.60 × 361,973.60
  4. Step 4: Simplify right side
    383,746.40x = 208,359,098,842.56
  5. Step 5: Solve for x
    x = 208,359,098,842.56/383,746.40
  6. Step 6: Final answer
    x = 542,960.40

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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.