Home / 567,621.90-783,282.48-312,975.18

Finding the Fourth Proportional to 567,621.90, 783,282.48 and 312,975.18

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Solution

The fourth proportional to 567,621.90, 783,282.48 and 312,975.18 is: 431,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,621.90 : 783,282.48 = 312,975.18 : x
  2. Step 2: Convert to fraction form
    567,621.90/783,282.48 = 312,975.18/x
  3. Step 3: Cross multiply
    567,621.90x = 783,282.48 × 312,975.18
  4. Step 4: Simplify right side
    567,621.90x = 245,147,975,168.85
  5. Step 5: Solve for x
    x = 245,147,975,168.85/567,621.90
  6. Step 6: Final answer
    x = 431,886.04

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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.