Home / 340,860.17-470,365.90-187,890.45

Finding the Fourth Proportional to 340,860.17, 470,365.90 and 187,890.45

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Solution

The fourth proportional to 340,860.17, 470,365.90 and 187,890.45 is: 259,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,860.17 : 470,365.90 = 187,890.45 : x
  2. Step 2: Convert to fraction form
    340,860.17/470,365.90 = 187,890.45/x
  3. Step 3: Cross multiply
    340,860.17x = 470,365.90 × 187,890.45
  4. Step 4: Simplify right side
    340,860.17x = 88,377,262,084.75
  5. Step 5: Solve for x
    x = 88,377,262,084.75/340,860.17
  6. Step 6: Final answer
    x = 259,277.18

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1.5x scale

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.