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Finding the Fourth Proportional to 912,731,072.40, 1,369,096,608.60 and 912,731,072.40

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Solution

The fourth proportional to 912,731,072.40, 1,369,096,608.60 and 912,731,072.40 is: 1,369,096,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,731,072.40 : 1,369,096,608.60 = 912,731,072.40 : x
  2. Step 2: Convert to fraction form
    912,731,072.40/1,369,096,608.60 = 912,731,072.40/x
  3. Step 3: Cross multiply
    912,731,072.40x = 1,369,096,608.60 × 912,731,072.40
  4. Step 4: Simplify right side
    912,731,072.40x = 1,249,617,015,786,680,832
  5. Step 5: Solve for x
    x = 1,249,617,015,786,680,832/912,731,072.40
  6. Step 6: Final answer
    x = 1,369,096,608.60

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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.