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Finding the Fourth Proportional to 578,769,069.80, 868,153,604.70 and 534,427,207.40

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Solution

The fourth proportional to 578,769,069.80, 868,153,604.70 and 534,427,207.40 is: 801,640,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,769,069.80 : 868,153,604.70 = 534,427,207.40 : x
  2. Step 2: Convert to fraction form
    578,769,069.80/868,153,604.70 = 534,427,207.40/x
  3. Step 3: Cross multiply
    578,769,069.80x = 868,153,604.70 × 534,427,207.40
  4. Step 4: Simplify right side
    578,769,069.80x = 463,964,906,554,064,512
  5. Step 5: Solve for x
    x = 463,964,906,554,064,512/578,769,069.80
  6. Step 6: Final answer
    x = 801,640,811.10

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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.