Home / 1,528,816.07-2,109,789.78-840,517.76

Finding the Fourth Proportional to 1,528,816.07, 2,109,789.78 and 840,517.76

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Solution

The fourth proportional to 1,528,816.07, 2,109,789.78 and 840,517.76 is: 1,159,927.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,816.07 : 2,109,789.78 = 840,517.76 : x
  2. Step 2: Convert to fraction form
    1,528,816.07/2,109,789.78 = 840,517.76/x
  3. Step 3: Cross multiply
    1,528,816.07x = 2,109,789.78 × 840,517.76
  4. Step 4: Simplify right side
    1,528,816.07x = 1,773,315,779,956.49
  5. Step 5: Solve for x
    x = 1,773,315,779,956.49/1,528,816.07
  6. Step 6: Final answer
    x = 1,159,927.49

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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.