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Finding the Fourth Proportional to 269,547,465.40, 404,395,847.70 and 178,848,201.40

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Solution

The fourth proportional to 269,547,465.40, 404,395,847.70 and 178,848,201.40 is: 268,321,833.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,547,465.40 : 404,395,847.70 = 178,848,201.40 : x
  2. Step 2: Convert to fraction form
    269,547,465.40/404,395,847.70 = 178,848,201.40/x
  3. Step 3: Cross multiply
    269,547,465.40x = 404,395,847.70 × 178,848,201.40
  4. Step 4: Simplify right side
    269,547,465.40x = 72,325,470,014,773,328
  5. Step 5: Solve for x
    x = 72,325,470,014,773,328/269,547,465.40
  6. Step 6: Final answer
    x = 268,321,833.07

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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.