Home / 1,186,830.73-1,780,526.13-388,109.17

Finding the Fourth Proportional to 1,186,830.73, 1,780,526.13 and 388,109.17

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Solution

The fourth proportional to 1,186,830.73, 1,780,526.13 and 388,109.17 is: 582,255.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,830.73 : 1,780,526.13 = 388,109.17 : x
  2. Step 2: Convert to fraction form
    1,186,830.73/1,780,526.13 = 388,109.17/x
  3. Step 3: Cross multiply
    1,186,830.73x = 1,780,526.13 × 388,109.17
  4. Step 4: Simplify right side
    1,186,830.73x = 691,038,518,477.61
  5. Step 5: Solve for x
    x = 691,038,518,477.61/1,186,830.73
  6. Step 6: Final answer
    x = 582,255.33

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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.