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Finding the Fourth Proportional to 719,322,155.90, 1,078,983,233.85 and 719,322,155.90

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Solution

The fourth proportional to 719,322,155.90, 1,078,983,233.85 and 719,322,155.90 is: 1,078,983,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,322,155.90 : 1,078,983,233.85 = 719,322,155.90 : x
  2. Step 2: Convert to fraction form
    719,322,155.90/1,078,983,233.85 = 719,322,155.90/x
  3. Step 3: Cross multiply
    719,322,155.90x = 1,078,983,233.85 × 719,322,155.90
  4. Step 4: Simplify right side
    719,322,155.90x = 776,136,545,952,935,808
  5. Step 5: Solve for x
    x = 776,136,545,952,935,808/719,322,155.90
  6. Step 6: Final answer
    x = 1,078,983,233.85

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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.