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Finding the Fourth Proportional to 530,683.25, 732,323.43 and 288,959.81

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Solution

The fourth proportional to 530,683.25, 732,323.43 and 288,959.81 is: 398,753.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,683.25 : 732,323.43 = 288,959.81 : x
  2. Step 2: Convert to fraction form
    530,683.25/732,323.43 = 288,959.81/x
  3. Step 3: Cross multiply
    530,683.25x = 732,323.43 × 288,959.81
  4. Step 4: Simplify right side
    530,683.25x = 211,612,035,529.73
  5. Step 5: Solve for x
    x = 211,612,035,529.73/530,683.25
  6. Step 6: Final answer
    x = 398,753.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.