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Finding the Fourth Proportional to 542,688.09, 813,865.52 and 375,284.17

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Solution

The fourth proportional to 542,688.09, 813,865.52 and 375,284.17 is: 562,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,688.09 : 813,865.52 = 375,284.17 : x
  2. Step 2: Convert to fraction form
    542,688.09/813,865.52 = 375,284.17/x
  3. Step 3: Cross multiply
    542,688.09x = 813,865.52 × 375,284.17
  4. Step 4: Simplify right side
    542,688.09x = 305,430,848,120.36
  5. Step 5: Solve for x
    x = 305,430,848,120.36/542,688.09
  6. Step 6: Final answer
    x = 562,811.04

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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.