Home / 450,053.97-621,068.43-256,473.20

Finding the Fourth Proportional to 450,053.97, 621,068.43 and 256,473.20

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Solution

The fourth proportional to 450,053.97, 621,068.43 and 256,473.20 is: 353,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,053.97 : 621,068.43 = 256,473.20 : x
  2. Step 2: Convert to fraction form
    450,053.97/621,068.43 = 256,473.20/x
  3. Step 3: Cross multiply
    450,053.97x = 621,068.43 × 256,473.20
  4. Step 4: Simplify right side
    450,053.97x = 159,287,409,213.75
  5. Step 5: Solve for x
    x = 159,287,409,213.75/450,053.97
  6. Step 6: Final answer
    x = 353,929.57

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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.