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Finding the Fourth Proportional to 464,391.53, 696,588.05 and 127,436.79

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Solution

The fourth proportional to 464,391.53, 696,588.05 and 127,436.79 is: 191,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,391.53 : 696,588.05 = 127,436.79 : x
  2. Step 2: Convert to fraction form
    464,391.53/696,588.05 = 127,436.79/x
  3. Step 3: Cross multiply
    464,391.53x = 696,588.05 × 127,436.79
  4. Step 4: Simplify right side
    464,391.53x = 88,770,947,975.16
  5. Step 5: Solve for x
    x = 88,770,947,975.16/464,391.53
  6. Step 6: Final answer
    x = 191,155.40

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1.5x scale

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.