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Finding the Fourth Proportional to 611,506.96, 843,851.19 and 339,592.12

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Solution

The fourth proportional to 611,506.96, 843,851.19 and 339,592.12 is: 468,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,506.96 : 843,851.19 = 339,592.12 : x
  2. Step 2: Convert to fraction form
    611,506.96/843,851.19 = 339,592.12/x
  3. Step 3: Cross multiply
    611,506.96x = 843,851.19 × 339,592.12
  4. Step 4: Simplify right side
    611,506.96x = 286,565,214,576.62
  5. Step 5: Solve for x
    x = 286,565,214,576.62/611,506.96
  6. Step 6: Final answer
    x = 468,621.35

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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.