Home / 1,285,368.21-1,928,322.05-386,875.71

Finding the Fourth Proportional to 1,285,368.21, 1,928,322.05 and 386,875.71

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Solution

The fourth proportional to 1,285,368.21, 1,928,322.05 and 386,875.71 is: 580,394.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,368.21 : 1,928,322.05 = 386,875.71 : x
  2. Step 2: Convert to fraction form
    1,285,368.21/1,928,322.05 = 386,875.71/x
  3. Step 3: Cross multiply
    1,285,368.21x = 1,928,322.05 × 386,875.71
  4. Step 4: Simplify right side
    1,285,368.21x = 746,020,960,268.03
  5. Step 5: Solve for x
    x = 746,020,960,268.03/1,285,368.21
  6. Step 6: Final answer
    x = 580,394.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.