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Finding the Fourth Proportional to 622,000.80, 933,001.20 and 266,954.40

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Solution

The fourth proportional to 622,000.80, 933,001.20 and 266,954.40 is: 400,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,000.80 : 933,001.20 = 266,954.40 : x
  2. Step 2: Convert to fraction form
    622,000.80/933,001.20 = 266,954.40/x
  3. Step 3: Cross multiply
    622,000.80x = 933,001.20 × 266,954.40
  4. Step 4: Simplify right side
    622,000.80x = 249,068,775,545.28
  5. Step 5: Solve for x
    x = 249,068,775,545.28/622,000.80
  6. Step 6: Final answer
    x = 400,431.60

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Double scale
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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.