Home / 385,029.27-531,127.10-223,866.51

Finding the Fourth Proportional to 385,029.27, 531,127.10 and 223,866.51

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Solution

The fourth proportional to 385,029.27, 531,127.10 and 223,866.51 is: 308,811.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,029.27 : 531,127.10 = 223,866.51 : x
  2. Step 2: Convert to fraction form
    385,029.27/531,127.10 = 223,866.51/x
  3. Step 3: Cross multiply
    385,029.27x = 531,127.10 × 223,866.51
  4. Step 4: Simplify right side
    385,029.27x = 118,901,570,243.42
  5. Step 5: Solve for x
    x = 118,901,570,243.42/385,029.27
  6. Step 6: Final answer
    x = 308,811.77

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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.