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Finding the Fourth Proportional to 586,363.20, 879,688.80 and 165,633.60

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Solution

The fourth proportional to 586,363.20, 879,688.80 and 165,633.60 is: 248,491.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,363.20 : 879,688.80 = 165,633.60 : x
  2. Step 2: Convert to fraction form
    586,363.20/879,688.80 = 165,633.60/x
  3. Step 3: Cross multiply
    586,363.20x = 879,688.80 × 165,633.60
  4. Step 4: Simplify right side
    586,363.20x = 145,706,022,823.68
  5. Step 5: Solve for x
    x = 145,706,022,823.68/586,363.20
  6. Step 6: Final answer
    x = 248,491.08

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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.