Home / 286,830.06-430,441.11-99,841.56

Finding the Fourth Proportional to 286,830.06, 430,441.11 and 99,841.56

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Solution

The fourth proportional to 286,830.06, 430,441.11 and 99,841.56 is: 149,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,830.06 : 430,441.11 = 99,841.56 : x
  2. Step 2: Convert to fraction form
    286,830.06/430,441.11 = 99,841.56/x
  3. Step 3: Cross multiply
    286,830.06x = 430,441.11 × 99,841.56
  4. Step 4: Simplify right side
    286,830.06x = 42,975,911,910.53
  5. Step 5: Solve for x
    x = 42,975,911,910.53/286,830.06
  6. Step 6: Final answer
    x = 149,830.57

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1.5x scale

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.