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Finding the Fourth Proportional to 575,755.76, 863,426.28 and 243,357.68

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Solution

The fourth proportional to 575,755.76, 863,426.28 and 243,357.68 is: 364,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,755.76 : 863,426.28 = 243,357.68 : x
  2. Step 2: Convert to fraction form
    575,755.76/863,426.28 = 243,357.68/x
  3. Step 3: Cross multiply
    575,755.76x = 863,426.28 × 243,357.68
  4. Step 4: Simplify right side
    575,755.76x = 210,121,416,351.83
  5. Step 5: Solve for x
    x = 210,121,416,351.83/575,755.76
  6. Step 6: Final answer
    x = 364,948.87

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1.5x scale

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.