Home / 385,656.38-578,857.73-186,117.23

Finding the Fourth Proportional to 385,656.38, 578,857.73 and 186,117.23

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Solution

The fourth proportional to 385,656.38, 578,857.73 and 186,117.23 is: 279,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,656.38 : 578,857.73 = 186,117.23 : x
  2. Step 2: Convert to fraction form
    385,656.38/578,857.73 = 186,117.23/x
  3. Step 3: Cross multiply
    385,656.38x = 578,857.73 × 186,117.23
  4. Step 4: Simplify right side
    385,656.38x = 107,735,396,341.10
  5. Step 5: Solve for x
    x = 107,735,396,341.10/385,656.38
  6. Step 6: Final answer
    x = 279,355.93

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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.