Home / 2,927,898.68-4,039,579.14-1,638,534.20

Finding the Fourth Proportional to 2,927,898.68, 4,039,579.14 and 1,638,534.20

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Solution

The fourth proportional to 2,927,898.68, 4,039,579.14 and 1,638,534.20 is: 2,260,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927,898.68 : 4,039,579.14 = 1,638,534.20 : x
  2. Step 2: Convert to fraction form
    2,927,898.68/4,039,579.14 = 1,638,534.20/x
  3. Step 3: Cross multiply
    2,927,898.68x = 4,039,579.14 × 1,638,534.20
  4. Step 4: Simplify right side
    2,927,898.68x = 6,618,988,574,496.59
  5. Step 5: Solve for x
    x = 6,618,988,574,496.59/2,927,898.68
  6. Step 6: Final answer
    x = 2,260,661.76

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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.