Home / 451,114.16-621,116.92-382,996.40

Finding the Fourth Proportional to 451,114.16, 621,116.92 and 382,996.40

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Solution

The fourth proportional to 451,114.16, 621,116.92 and 382,996.40 is: 527,328.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,114.16 : 621,116.92 = 382,996.40 : x
  2. Step 2: Convert to fraction form
    451,114.16/621,116.92 = 382,996.40/x
  3. Step 3: Cross multiply
    451,114.16x = 621,116.92 × 382,996.40
  4. Step 4: Simplify right side
    451,114.16x = 237,885,544,339.09
  5. Step 5: Solve for x
    x = 237,885,544,339.09/451,114.16
  6. Step 6: Final answer
    x = 527,328.92

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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.