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Finding the Fourth Proportional to 228,354.39, 315,430.26 and 175,295.07

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Solution

The fourth proportional to 228,354.39, 315,430.26 and 175,295.07 is: 242,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,354.39 : 315,430.26 = 175,295.07 : x
  2. Step 2: Convert to fraction form
    228,354.39/315,430.26 = 175,295.07/x
  3. Step 3: Cross multiply
    228,354.39x = 315,430.26 × 175,295.07
  4. Step 4: Simplify right side
    228,354.39x = 55,293,369,506.82
  5. Step 5: Solve for x
    x = 55,293,369,506.82/228,354.39
  6. Step 6: Final answer
    x = 242,138.41

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1.5x scale

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.