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Finding the Fourth Proportional to 562,783.61, 776,718.83 and 345,122.44

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Solution

The fourth proportional to 562,783.61, 776,718.83 and 345,122.44 is: 476,316.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,783.61 : 776,718.83 = 345,122.44 : x
  2. Step 2: Convert to fraction form
    562,783.61/776,718.83 = 345,122.44/x
  3. Step 3: Cross multiply
    562,783.61x = 776,718.83 × 345,122.44
  4. Step 4: Simplify right side
    562,783.61x = 268,063,096,724.55
  5. Step 5: Solve for x
    x = 268,063,096,724.55/562,783.61
  6. Step 6: Final answer
    x = 476,316.46

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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.