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Finding the Fourth Proportional to 475,778.10, 712,404.48 and 372,162.81

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Solution

The fourth proportional to 475,778.10, 712,404.48 and 372,162.81 is: 557,256.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,778.10 : 712,404.48 = 372,162.81 : x
  2. Step 2: Convert to fraction form
    475,778.10/712,404.48 = 372,162.81/x
  3. Step 3: Cross multiply
    475,778.10x = 712,404.48 × 372,162.81
  4. Step 4: Simplify right side
    475,778.10x = 265,130,453,133.39
  5. Step 5: Solve for x
    x = 265,130,453,133.39/475,778.10
  6. Step 6: Final answer
    x = 557,256.53

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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.