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Finding the Fourth Proportional to 777,520.10, 1,072,988.46 and 433,346.42

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Solution

The fourth proportional to 777,520.10, 1,072,988.46 and 433,346.42 is: 598,024.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,520.10 : 1,072,988.46 = 433,346.42 : x
  2. Step 2: Convert to fraction form
    777,520.10/1,072,988.46 = 433,346.42/x
  3. Step 3: Cross multiply
    777,520.10x = 1,072,988.46 × 433,346.42
  4. Step 4: Simplify right side
    777,520.10x = 464,975,707,842.31
  5. Step 5: Solve for x
    x = 464,975,707,842.31/777,520.10
  6. Step 6: Final answer
    x = 598,024.04

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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.