Home / 1,169,465.45-1,754,345.79-411,128.66

Finding the Fourth Proportional to 1,169,465.45, 1,754,345.79 and 411,128.66

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Solution

The fourth proportional to 1,169,465.45, 1,754,345.79 and 411,128.66 is: 616,744.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169,465.45 : 1,754,345.79 = 411,128.66 : x
  2. Step 2: Convert to fraction form
    1,169,465.45/1,754,345.79 = 411,128.66/x
  3. Step 3: Cross multiply
    1,169,465.45x = 1,754,345.79 × 411,128.66
  4. Step 4: Simplify right side
    1,169,465.45x = 721,261,838,205.21
  5. Step 5: Solve for x
    x = 721,261,838,205.21/1,169,465.45
  6. Step 6: Final answer
    x = 616,744.89

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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.