Home / 1,928,526.91-2,878,708.40-1,788,027.19

Finding the Fourth Proportional to 1,928,526.91, 2,878,708.40 and 1,788,027.19

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Solution

The fourth proportional to 1,928,526.91, 2,878,708.40 and 1,788,027.19 is: 2,668,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,526.91 : 2,878,708.40 = 1,788,027.19 : x
  2. Step 2: Convert to fraction form
    1,928,526.91/2,878,708.40 = 1,788,027.19/x
  3. Step 3: Cross multiply
    1,928,526.91x = 2,878,708.40 × 1,788,027.19
  4. Step 4: Simplify right side
    1,928,526.91x = 5,147,208,881,849.59
  5. Step 5: Solve for x
    x = 5,147,208,881,849.59/1,928,526.91
  6. Step 6: Final answer
    x = 2,668,984.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.