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Finding the Fourth Proportional to 766,584,858.60, 1,149,877,287.90 and 766,584,858.60

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Solution

The fourth proportional to 766,584,858.60, 1,149,877,287.90 and 766,584,858.60 is: 1,149,877,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,584,858.60 : 1,149,877,287.90 = 766,584,858.60 : x
  2. Step 2: Convert to fraction form
    766,584,858.60/1,149,877,287.90 = 766,584,858.60/x
  3. Step 3: Cross multiply
    766,584,858.60x = 1,149,877,287.90 × 766,584,858.60
  4. Step 4: Simplify right side
    766,584,858.60x = 881,478,518,152,173,056
  5. Step 5: Solve for x
    x = 881,478,518,152,173,056/766,584,858.60
  6. Step 6: Final answer
    x = 1,149,877,287.90

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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.