Home / 384,455.16-530,526.15-229,581.21

Finding the Fourth Proportional to 384,455.16, 530,526.15 and 229,581.21

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Solution

The fourth proportional to 384,455.16, 530,526.15 and 229,581.21 is: 316,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,455.16 : 530,526.15 = 229,581.21 : x
  2. Step 2: Convert to fraction form
    384,455.16/530,526.15 = 229,581.21/x
  3. Step 3: Cross multiply
    384,455.16x = 530,526.15 × 229,581.21
  4. Step 4: Simplify right side
    384,455.16x = 121,798,835,453.64
  5. Step 5: Solve for x
    x = 121,798,835,453.64/384,455.16
  6. Step 6: Final answer
    x = 316,808.95

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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.