Home / 1,154,712.96-1,593,509.76-645,404.40

Finding the Fourth Proportional to 1,154,712.96, 1,593,509.76 and 645,404.40

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Solution

The fourth proportional to 1,154,712.96, 1,593,509.76 and 645,404.40 is: 890,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,712.96 : 1,593,509.76 = 645,404.40 : x
  2. Step 2: Convert to fraction form
    1,154,712.96/1,593,509.76 = 645,404.40/x
  3. Step 3: Cross multiply
    1,154,712.96x = 1,593,509.76 × 645,404.40
  4. Step 4: Simplify right side
    1,154,712.96x = 1,028,458,210,546.94
  5. Step 5: Solve for x
    x = 1,028,458,210,546.94/1,154,712.96
  6. Step 6: Final answer
    x = 890,661.36

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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.