Home / 1,692,155.25-2,335,174.38-928,210.77

Finding the Fourth Proportional to 1,692,155.25, 2,335,174.38 and 928,210.77

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Solution

The fourth proportional to 1,692,155.25, 2,335,174.38 and 928,210.77 is: 1,280,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,155.25 : 2,335,174.38 = 928,210.77 : x
  2. Step 2: Convert to fraction form
    1,692,155.25/2,335,174.38 = 928,210.77/x
  3. Step 3: Cross multiply
    1,692,155.25x = 2,335,174.38 × 928,210.77
  4. Step 4: Simplify right side
    1,692,155.25x = 2,167,534,009,344.07
  5. Step 5: Solve for x
    x = 2,167,534,009,344.07/1,692,155.25
  6. Step 6: Final answer
    x = 1,280,930.94

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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.