Home / 387,059.15-534,123.45-214,988.27

Finding the Fourth Proportional to 387,059.15, 534,123.45 and 214,988.27

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Solution

The fourth proportional to 387,059.15, 534,123.45 and 214,988.27 is: 296,673.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,059.15 : 534,123.45 = 214,988.27 : x
  2. Step 2: Convert to fraction form
    387,059.15/534,123.45 = 214,988.27/x
  3. Step 3: Cross multiply
    387,059.15x = 534,123.45 × 214,988.27
  4. Step 4: Simplify right side
    387,059.15x = 114,830,273,811.31
  5. Step 5: Solve for x
    x = 114,830,273,811.31/387,059.15
  6. Step 6: Final answer
    x = 296,673.71

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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.