Home / 286,815.80-429,834.90-191,775.80

Finding the Fourth Proportional to 286,815.80, 429,834.90 and 191,775.80

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Solution

The fourth proportional to 286,815.80, 429,834.90 and 191,775.80 is: 287,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,815.80 : 429,834.90 = 191,775.80 : x
  2. Step 2: Convert to fraction form
    286,815.80/429,834.90 = 191,775.80/x
  3. Step 3: Cross multiply
    286,815.80x = 429,834.90 × 191,775.80
  4. Step 4: Simplify right side
    286,815.80x = 82,431,931,815.42
  5. Step 5: Solve for x
    x = 82,431,931,815.42/286,815.80
  6. Step 6: Final answer
    x = 287,403.73

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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.