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Finding the Fourth Proportional to 676,565,961.60, 945,151,612.80 and 676,565,961.60

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Solution

The fourth proportional to 676,565,961.60, 945,151,612.80 and 676,565,961.60 is: 945,151,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,565,961.60 : 945,151,612.80 = 676,565,961.60 : x
  2. Step 2: Convert to fraction form
    676,565,961.60/945,151,612.80 = 676,565,961.60/x
  3. Step 3: Cross multiply
    676,565,961.60x = 945,151,612.80 × 676,565,961.60
  4. Step 4: Simplify right side
    676,565,961.60x = 639,457,409,771,822,848
  5. Step 5: Solve for x
    x = 639,457,409,771,822,848/676,565,961.60
  6. Step 6: Final answer
    x = 945,151,612.80

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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.