Home / 927,455.69-1,391,315.60-287,814.71

Finding the Fourth Proportional to 927,455.69, 1,391,315.60 and 287,814.71

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Solution

The fourth proportional to 927,455.69, 1,391,315.60 and 287,814.71 is: 431,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,455.69 : 1,391,315.60 = 287,814.71 : x
  2. Step 2: Convert to fraction form
    927,455.69/1,391,315.60 = 287,814.71/x
  3. Step 3: Cross multiply
    927,455.69x = 1,391,315.60 × 287,814.71
  4. Step 4: Simplify right side
    927,455.69x = 400,441,100,130.30
  5. Step 5: Solve for x
    x = 400,441,100,130.30/927,455.69
  6. Step 6: Final answer
    x = 431,763.05

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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.