Home / 353,209.41-530,038.89-128,548.22

Finding the Fourth Proportional to 353,209.41, 530,038.89 and 128,548.22

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Solution

The fourth proportional to 353,209.41, 530,038.89 and 128,548.22 is: 192,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,209.41 : 530,038.89 = 128,548.22 : x
  2. Step 2: Convert to fraction form
    353,209.41/530,038.89 = 128,548.22/x
  3. Step 3: Cross multiply
    353,209.41x = 530,038.89 × 128,548.22
  4. Step 4: Simplify right side
    353,209.41x = 68,135,553,190.08
  5. Step 5: Solve for x
    x = 68,135,553,190.08/353,209.41
  6. Step 6: Final answer
    x = 192,904.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.