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Finding the Fourth Proportional to 672,867,600.60, 1,009,301,400.90 and 657,751,056.60

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Solution

The fourth proportional to 672,867,600.60, 1,009,301,400.90 and 657,751,056.60 is: 986,626,584.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,867,600.60 : 1,009,301,400.90 = 657,751,056.60 : x
  2. Step 2: Convert to fraction form
    672,867,600.60/1,009,301,400.90 = 657,751,056.60/x
  3. Step 3: Cross multiply
    672,867,600.60x = 1,009,301,400.90 × 657,751,056.60
  4. Step 4: Simplify right side
    672,867,600.60x = 663,869,062,869,835,136
  5. Step 5: Solve for x
    x = 663,869,062,869,835,136/672,867,600.60
  6. Step 6: Final answer
    x = 986,626,584.90

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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.