Home / 567,623.12-783,355.20-312,973.92

Finding the Fourth Proportional to 567,623.12, 783,355.20 and 312,973.92

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Solution

The fourth proportional to 567,623.12, 783,355.20 and 312,973.92 is: 431,923.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,623.12 : 783,355.20 = 312,973.92 : x
  2. Step 2: Convert to fraction form
    567,623.12/783,355.20 = 312,973.92/x
  3. Step 3: Cross multiply
    567,623.12x = 783,355.20 × 312,973.92
  4. Step 4: Simplify right side
    567,623.12x = 245,169,747,696.38
  5. Step 5: Solve for x
    x = 245,169,747,696.38/567,623.12
  6. Step 6: Final answer
    x = 431,923.47

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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.