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Finding the Fourth Proportional to 623,700.42, 860,706.41 and 351,767.76

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Solution

The fourth proportional to 623,700.42, 860,706.41 and 351,767.76 is: 485,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,700.42 : 860,706.41 = 351,767.76 : x
  2. Step 2: Convert to fraction form
    623,700.42/860,706.41 = 351,767.76/x
  3. Step 3: Cross multiply
    623,700.42x = 860,706.41 × 351,767.76
  4. Step 4: Simplify right side
    623,700.42x = 302,768,764,104.50
  5. Step 5: Solve for x
    x = 302,768,764,104.50/623,700.42
  6. Step 6: Final answer
    x = 485,439.41

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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.