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Finding the Fourth Proportional to 622,401.40, 933,602.10 and 307,473.40

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Solution

The fourth proportional to 622,401.40, 933,602.10 and 307,473.40 is: 461,210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,401.40 : 933,602.10 = 307,473.40 : x
  2. Step 2: Convert to fraction form
    622,401.40/933,602.10 = 307,473.40/x
  3. Step 3: Cross multiply
    622,401.40x = 933,602.10 × 307,473.40
  4. Step 4: Simplify right side
    622,401.40x = 287,057,811,934.14
  5. Step 5: Solve for x
    x = 287,057,811,934.14/622,401.40
  6. Step 6: Final answer
    x = 461,210.10

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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.