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Finding the Fourth Proportional to 556,793.16, 768,722.79 and 382,663.29

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Solution

The fourth proportional to 556,793.16, 768,722.79 and 382,663.29 is: 528,314.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,793.16 : 768,722.79 = 382,663.29 : x
  2. Step 2: Convert to fraction form
    556,793.16/768,722.79 = 382,663.29/x
  3. Step 3: Cross multiply
    556,793.16x = 768,722.79 × 382,663.29
  4. Step 4: Simplify right side
    556,793.16x = 294,161,991,919.38
  5. Step 5: Solve for x
    x = 294,161,991,919.38/556,793.16
  6. Step 6: Final answer
    x = 528,314.67

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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.