Home / 819,505.80-1,130,835.24-456,895.62

Finding the Fourth Proportional to 819,505.80, 1,130,835.24 and 456,895.62

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Solution

The fourth proportional to 819,505.80, 1,130,835.24 and 456,895.62 is: 630,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,505.80 : 1,130,835.24 = 456,895.62 : x
  2. Step 2: Convert to fraction form
    819,505.80/1,130,835.24 = 456,895.62/x
  3. Step 3: Cross multiply
    819,505.80x = 1,130,835.24 × 456,895.62
  4. Step 4: Simplify right side
    819,505.80x = 516,673,668,097.65
  5. Step 5: Solve for x
    x = 516,673,668,097.65/819,505.80
  6. Step 6: Final answer
    x = 630,469.81

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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.