Home / 780,666.14-1,077,196.82-454,051.46

Finding the Fourth Proportional to 780,666.14, 1,077,196.82 and 454,051.46

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Solution

The fourth proportional to 780,666.14, 1,077,196.82 and 454,051.46 is: 626,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,666.14 : 1,077,196.82 = 454,051.46 : x
  2. Step 2: Convert to fraction form
    780,666.14/1,077,196.82 = 454,051.46/x
  3. Step 3: Cross multiply
    780,666.14x = 1,077,196.82 × 454,051.46
  4. Step 4: Simplify right side
    780,666.14x = 489,102,788,828.36
  5. Step 5: Solve for x
    x = 489,102,788,828.36/780,666.14
  6. Step 6: Final answer
    x = 626,519.79

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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.