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Finding the Fourth Proportional to 556,562.23, 768,056.11 and 314,839.67

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Solution

The fourth proportional to 556,562.23, 768,056.11 and 314,839.67 is: 434,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,562.23 : 768,056.11 = 314,839.67 : x
  2. Step 2: Convert to fraction form
    556,562.23/768,056.11 = 314,839.67/x
  3. Step 3: Cross multiply
    556,562.23x = 768,056.11 × 314,839.67
  4. Step 4: Simplify right side
    556,562.23x = 241,814,527,586.50
  5. Step 5: Solve for x
    x = 241,814,527,586.50/556,562.23
  6. Step 6: Final answer
    x = 434,478.87

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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.