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Finding the Fourth Proportional to 517,291.68, 776,127.06 and 217,847.64

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Solution

The fourth proportional to 517,291.68, 776,127.06 and 217,847.64 is: 326,851.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,291.68 : 776,127.06 = 217,847.64 : x
  2. Step 2: Convert to fraction form
    517,291.68/776,127.06 = 217,847.64/x
  3. Step 3: Cross multiply
    517,291.68x = 776,127.06 × 217,847.64
  4. Step 4: Simplify right side
    517,291.68x = 169,077,448,361.14
  5. Step 5: Solve for x
    x = 169,077,448,361.14/517,291.68
  6. Step 6: Final answer
    x = 326,851.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.