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Finding the Fourth Proportional to 407,781, 562,781.88 and 246,724.85

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Solution

The fourth proportional to 407,781, 562,781.88 and 246,724.85 is: 340,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,781 : 562,781.88 = 246,724.85 : x
  2. Step 2: Convert to fraction form
    407,781/562,781.88 = 246,724.85/x
  3. Step 3: Cross multiply
    407,781x = 562,781.88 × 246,724.85
  4. Step 4: Simplify right side
    407,781x = 138,852,274,925.72
  5. Step 5: Solve for x
    x = 138,852,274,925.72/407,781
  6. Step 6: Final answer
    x = 340,506.98

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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.