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Finding the Fourth Proportional to 702,716,856.30, 1,047,792,809.22 and 683,410,149.90

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Solution

The fourth proportional to 702,716,856.30, 1,047,792,809.22 and 683,410,149.90 is: 1,019,005,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,716,856.30 : 1,047,792,809.22 = 683,410,149.90 : x
  2. Step 2: Convert to fraction form
    702,716,856.30/1,047,792,809.22 = 683,410,149.90/x
  3. Step 3: Cross multiply
    702,716,856.30x = 1,047,792,809.22 × 683,410,149.90
  4. Step 4: Simplify right side
    702,716,856.30x = 716,072,240,813,182,336
  5. Step 5: Solve for x
    x = 716,072,240,813,182,336/702,716,856.30
  6. Step 6: Final answer
    x = 1,019,005,356.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.