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Finding the Fourth Proportional to 580,014.86, 870,118.65 and 243,080.84

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Solution

The fourth proportional to 580,014.86, 870,118.65 and 243,080.84 is: 364,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,014.86 : 870,118.65 = 243,080.84 : x
  2. Step 2: Convert to fraction form
    580,014.86/870,118.65 = 243,080.84/x
  3. Step 3: Cross multiply
    580,014.86x = 870,118.65 × 243,080.84
  4. Step 4: Simplify right side
    580,014.86x = 211,509,174,516.96
  5. Step 5: Solve for x
    x = 211,509,174,516.96/580,014.86
  6. Step 6: Final answer
    x = 364,661.65

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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.