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Finding the Fourth Proportional to 622,072.80, 933,109.20 and 267,026.40

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Solution

The fourth proportional to 622,072.80, 933,109.20 and 267,026.40 is: 400,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,072.80 : 933,109.20 = 267,026.40 : x
  2. Step 2: Convert to fraction form
    622,072.80/933,109.20 = 267,026.40/x
  3. Step 3: Cross multiply
    622,072.80x = 933,109.20 × 267,026.40
  4. Step 4: Simplify right side
    622,072.80x = 249,164,790,482.88
  5. Step 5: Solve for x
    x = 249,164,790,482.88/622,072.80
  6. Step 6: Final answer
    x = 400,539.60

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Similar ratio
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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.