Home / 1,528,824.89-2,109,724.58-840,491.77

Finding the Fourth Proportional to 1,528,824.89, 2,109,724.58 and 840,491.77

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Solution

The fourth proportional to 1,528,824.89, 2,109,724.58 and 840,491.77 is: 1,159,849.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,824.89 : 2,109,724.58 = 840,491.77 : x
  2. Step 2: Convert to fraction form
    1,528,824.89/2,109,724.58 = 840,491.77/x
  3. Step 3: Cross multiply
    1,528,824.89x = 2,109,724.58 × 840,491.77
  4. Step 4: Simplify right side
    1,528,824.89x = 1,773,206,136,979.94
  5. Step 5: Solve for x
    x = 1,773,206,136,979.94/1,528,824.89
  6. Step 6: Final answer
    x = 1,159,849.07

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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.