Home / 384,822.90-530,996.12-215,024.22

Finding the Fourth Proportional to 384,822.90, 530,996.12 and 215,024.22

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Solution

The fourth proportional to 384,822.90, 530,996.12 and 215,024.22 is: 296,700.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,822.90 : 530,996.12 = 215,024.22 : x
  2. Step 2: Convert to fraction form
    384,822.90/530,996.12 = 215,024.22/x
  3. Step 3: Cross multiply
    384,822.90x = 530,996.12 × 215,024.22
  4. Step 4: Simplify right side
    384,822.90x = 114,177,026,526.03
  5. Step 5: Solve for x
    x = 114,177,026,526.03/384,822.90
  6. Step 6: Final answer
    x = 296,700.19

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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.