Home / 1,065,572.39-1,470,518.76-636,101.78

Finding the Fourth Proportional to 1,065,572.39, 1,470,518.76 and 636,101.78

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Solution

The fourth proportional to 1,065,572.39, 1,470,518.76 and 636,101.78 is: 877,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,572.39 : 1,470,518.76 = 636,101.78 : x
  2. Step 2: Convert to fraction form
    1,065,572.39/1,470,518.76 = 636,101.78/x
  3. Step 3: Cross multiply
    1,065,572.39x = 1,470,518.76 × 636,101.78
  4. Step 4: Simplify right side
    1,065,572.39x = 935,399,600,759.39
  5. Step 5: Solve for x
    x = 935,399,600,759.39/1,065,572.39
  6. Step 6: Final answer
    x = 877,837.69

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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.