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Finding the Fourth Proportional to 292,048.40, 435,494.69 and 281,640.85

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Solution

The fourth proportional to 292,048.40, 435,494.69 and 281,640.85 is: 419,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,048.40 : 435,494.69 = 281,640.85 : x
  2. Step 2: Convert to fraction form
    292,048.40/435,494.69 = 281,640.85/x
  3. Step 3: Cross multiply
    292,048.40x = 435,494.69 × 281,640.85
  4. Step 4: Simplify right side
    292,048.40x = 122,653,094,805.53
  5. Step 5: Solve for x
    x = 122,653,094,805.53/292,048.40
  6. Step 6: Final answer
    x = 419,975.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.