Home / 696,359,688.64-1,044,501,732.72-211,647,705.28

Finding the Fourth Proportional to 696,359,688.64, 1,044,501,732.72 and 211,647,705.28

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Solution

The fourth proportional to 696,359,688.64, 1,044,501,732.72 and 211,647,705.28 is: 317,460,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,359,688.64 : 1,044,501,732.72 = 211,647,705.28 : x
  2. Step 2: Convert to fraction form
    696,359,688.64/1,044,501,732.72 = 211,647,705.28/x
  3. Step 3: Cross multiply
    696,359,688.64x = 1,044,501,732.72 × 211,647,705.28
  4. Step 4: Simplify right side
    696,359,688.64x = 221,066,394,891,171,904
  5. Step 5: Solve for x
    x = 221,066,394,891,171,904/696,359,688.64
  6. Step 6: Final answer
    x = 317,460,069.12

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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.