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Finding the Fourth Proportional to 660,064,656.60, 990,096,984.90 and 660,064,656.60

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Solution

The fourth proportional to 660,064,656.60, 990,096,984.90 and 660,064,656.60 is: 990,096,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,064,656.60 : 990,096,984.90 = 660,064,656.60 : x
  2. Step 2: Convert to fraction form
    660,064,656.60/990,096,984.90 = 660,064,656.60/x
  3. Step 3: Cross multiply
    660,064,656.60x = 990,096,984.90 × 660,064,656.60
  4. Step 4: Simplify right side
    660,064,656.60x = 653,528,026,338,713,856
  5. Step 5: Solve for x
    x = 653,528,026,338,713,856/660,064,656.60
  6. Step 6: Final answer
    x = 990,096,984.90

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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.