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Finding the Fourth Proportional to 622,605.40, 933,908.10 and 465,141.40

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Solution

The fourth proportional to 622,605.40, 933,908.10 and 465,141.40 is: 697,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,605.40 : 933,908.10 = 465,141.40 : x
  2. Step 2: Convert to fraction form
    622,605.40/933,908.10 = 465,141.40/x
  3. Step 3: Cross multiply
    622,605.40x = 933,908.10 × 465,141.40
  4. Step 4: Simplify right side
    622,605.40x = 434,399,321,105.34
  5. Step 5: Solve for x
    x = 434,399,321,105.34/622,605.40
  6. Step 6: Final answer
    x = 697,712.10

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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.