Home / 1,528,670.76-2,109,592.47-840,371.62

Finding the Fourth Proportional to 1,528,670.76, 2,109,592.47 and 840,371.62

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Solution

The fourth proportional to 1,528,670.76, 2,109,592.47 and 840,371.62 is: 1,159,727.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,670.76 : 2,109,592.47 = 840,371.62 : x
  2. Step 2: Convert to fraction form
    1,528,670.76/2,109,592.47 = 840,371.62/x
  3. Step 3: Cross multiply
    1,528,670.76x = 2,109,592.47 × 840,371.62
  4. Step 4: Simplify right side
    1,528,670.76x = 1,772,841,641,039.30
  5. Step 5: Solve for x
    x = 1,772,841,641,039.30/1,528,670.76
  6. Step 6: Final answer
    x = 1,159,727.58

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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.