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Finding the Fourth Proportional to 821,674.93, 1,133,807.19 and 482,019.25

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Solution

The fourth proportional to 821,674.93, 1,133,807.19 and 482,019.25 is: 665,125.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,674.93 : 1,133,807.19 = 482,019.25 : x
  2. Step 2: Convert to fraction form
    821,674.93/1,133,807.19 = 482,019.25/x
  3. Step 3: Cross multiply
    821,674.93x = 1,133,807.19 × 482,019.25
  4. Step 4: Simplify right side
    821,674.93x = 546,516,891,368.41
  5. Step 5: Solve for x
    x = 546,516,891,368.41/821,674.93
  6. Step 6: Final answer
    x = 665,125.43

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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.