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Finding the Fourth Proportional to 719,318,200.20, 1,078,977,300.30 and 719,318,200.20

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Solution

The fourth proportional to 719,318,200.20, 1,078,977,300.30 and 719,318,200.20 is: 1,078,977,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,318,200.20 : 1,078,977,300.30 = 719,318,200.20 : x
  2. Step 2: Convert to fraction form
    719,318,200.20/1,078,977,300.30 = 719,318,200.20/x
  3. Step 3: Cross multiply
    719,318,200.20x = 1,078,977,300.30 × 719,318,200.20
  4. Step 4: Simplify right side
    719,318,200.20x = 776,128,009,708,450,944
  5. Step 5: Solve for x
    x = 776,128,009,708,450,944/719,318,200.20
  6. Step 6: Final answer
    x = 1,078,977,300.30

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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.