Home / 1,528,875.83-2,109,849.99-840,559.38

Finding the Fourth Proportional to 1,528,875.83, 2,109,849.99 and 840,559.38

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Solution

The fourth proportional to 1,528,875.83, 2,109,849.99 and 840,559.38 is: 1,159,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,875.83 : 2,109,849.99 = 840,559.38 : x
  2. Step 2: Convert to fraction form
    1,528,875.83/2,109,849.99 = 840,559.38/x
  3. Step 3: Cross multiply
    1,528,875.83x = 2,109,849.99 × 840,559.38
  4. Step 4: Simplify right side
    1,528,875.83x = 1,773,454,199,487.41
  5. Step 5: Solve for x
    x = 1,773,454,199,487.41/1,528,875.83
  6. Step 6: Final answer
    x = 1,159,972.69

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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.