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Finding the Fourth Proportional to 383,460.10, 574,534.05 and 243,054.70

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Solution

The fourth proportional to 383,460.10, 574,534.05 and 243,054.70 is: 364,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,460.10 : 574,534.05 = 243,054.70 : x
  2. Step 2: Convert to fraction form
    383,460.10/574,534.05 = 243,054.70/x
  3. Step 3: Cross multiply
    383,460.10x = 574,534.05 × 243,054.70
  4. Step 4: Simplify right side
    383,460.10x = 139,643,201,162.54
  5. Step 5: Solve for x
    x = 139,643,201,162.54/383,460.10
  6. Step 6: Final answer
    x = 364,166.18

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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.