Home / 1,151,123.20-1,588,567.68-641,808.64

Finding the Fourth Proportional to 1,151,123.20, 1,588,567.68 and 641,808.64

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Solution

The fourth proportional to 1,151,123.20, 1,588,567.68 and 641,808.64 is: 885,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,123.20 : 1,588,567.68 = 641,808.64 : x
  2. Step 2: Convert to fraction form
    1,151,123.20/1,588,567.68 = 641,808.64/x
  3. Step 3: Cross multiply
    1,151,123.20x = 1,588,567.68 × 641,808.64
  4. Step 4: Simplify right side
    1,151,123.20x = 1,019,556,462,248.76
  5. Step 5: Solve for x
    x = 1,019,556,462,248.76/1,151,123.20
  6. Step 6: Final answer
    x = 885,705.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.