Home / 384,777.48-530,992.08-215,011.60

Finding the Fourth Proportional to 384,777.48, 530,992.08 and 215,011.60

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Solution

The fourth proportional to 384,777.48, 530,992.08 and 215,011.60 is: 296,715.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,777.48 : 530,992.08 = 215,011.60 : x
  2. Step 2: Convert to fraction form
    384,777.48/530,992.08 = 215,011.60/x
  3. Step 3: Cross multiply
    384,777.48x = 530,992.08 × 215,011.60
  4. Step 4: Simplify right side
    384,777.48x = 114,169,456,708.13
  5. Step 5: Solve for x
    x = 114,169,456,708.13/384,777.48
  6. Step 6: Final answer
    x = 296,715.54

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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.