Home / 1,212,409.56-1,673,089.39-668,545.21

Finding the Fourth Proportional to 1,212,409.56, 1,673,089.39 and 668,545.21

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Solution

The fourth proportional to 1,212,409.56, 1,673,089.39 and 668,545.21 is: 922,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,409.56 : 1,673,089.39 = 668,545.21 : x
  2. Step 2: Convert to fraction form
    1,212,409.56/1,673,089.39 = 668,545.21/x
  3. Step 3: Cross multiply
    1,212,409.56x = 1,673,089.39 × 668,545.21
  4. Step 4: Simplify right side
    1,212,409.56x = 1,118,535,897,586.32
  5. Step 5: Solve for x
    x = 1,118,535,897,586.32/1,212,409.56
  6. Step 6: Final answer
    x = 922,572.65

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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.