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Finding the Fourth Proportional to 663,267.82, 915,025.88 and 433,426.11

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Solution

The fourth proportional to 663,267.82, 915,025.88 and 433,426.11 is: 597,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,267.82 : 915,025.88 = 433,426.11 : x
  2. Step 2: Convert to fraction form
    663,267.82/915,025.88 = 433,426.11/x
  3. Step 3: Cross multiply
    663,267.82x = 915,025.88 × 433,426.11
  4. Step 4: Simplify right side
    663,267.82x = 396,596,111,261.96
  5. Step 5: Solve for x
    x = 396,596,111,261.96/663,267.82
  6. Step 6: Final answer
    x = 597,942.64

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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.