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Finding the Fourth Proportional to 524,641,161.60, 786,961,742.40 and 217,775,318.40

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Solution

The fourth proportional to 524,641,161.60, 786,961,742.40 and 217,775,318.40 is: 326,662,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,641,161.60 : 786,961,742.40 = 217,775,318.40 : x
  2. Step 2: Convert to fraction form
    524,641,161.60/786,961,742.40 = 217,775,318.40/x
  3. Step 3: Cross multiply
    524,641,161.60x = 786,961,742.40 × 217,775,318.40
  4. Step 4: Simplify right side
    524,641,161.60x = 171,380,844,019,778,784
  5. Step 5: Solve for x
    x = 171,380,844,019,778,784/524,641,161.60
  6. Step 6: Final answer
    x = 326,662,977.60

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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.