Home / 385,287.92-531,683.57-213,202.91

Finding the Fourth Proportional to 385,287.92, 531,683.57 and 213,202.91

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Solution

The fourth proportional to 385,287.92, 531,683.57 and 213,202.91 is: 294,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,287.92 : 531,683.57 = 213,202.91 : x
  2. Step 2: Convert to fraction form
    385,287.92/531,683.57 = 213,202.91/x
  3. Step 3: Cross multiply
    385,287.92x = 531,683.57 × 213,202.91
  4. Step 4: Simplify right side
    385,287.92x = 113,356,480,598.76
  5. Step 5: Solve for x
    x = 113,356,480,598.76/385,287.92
  6. Step 6: Final answer
    x = 294,212.40

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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.