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Finding the Fourth Proportional to 1,347,971,390.40, 1,892,601,902.40 and 1,347,971,390.40

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Solution

The fourth proportional to 1,347,971,390.40, 1,892,601,902.40 and 1,347,971,390.40 is: 1,892,601,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,971,390.40 : 1,892,601,902.40 = 1,347,971,390.40 : x
  2. Step 2: Convert to fraction form
    1,347,971,390.40/1,892,601,902.40 = 1,347,971,390.40/x
  3. Step 3: Cross multiply
    1,347,971,390.40x = 1,892,601,902.40 × 1,347,971,390.40
  4. Step 4: Simplify right side
    1,347,971,390.40x = 2,551,173,217,851,813,376
  5. Step 5: Solve for x
    x = 2,551,173,217,851,813,376/1,347,971,390.40
  6. Step 6: Final answer
    x = 1,892,601,902.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.