Home / 312,541.02-431,297.72-183,477.42

Finding the Fourth Proportional to 312,541.02, 431,297.72 and 183,477.42

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Solution

The fourth proportional to 312,541.02, 431,297.72 and 183,477.42 is: 253,193.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,541.02 : 431,297.72 = 183,477.42 : x
  2. Step 2: Convert to fraction form
    312,541.02/431,297.72 = 183,477.42/x
  3. Step 3: Cross multiply
    312,541.02x = 431,297.72 × 183,477.42
  4. Step 4: Simplify right side
    312,541.02x = 79,133,392,917.48
  5. Step 5: Solve for x
    x = 79,133,392,917.48/312,541.02
  6. Step 6: Final answer
    x = 253,193.62

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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.