Home / 450,055.27-621,076.43-256,457.44

Finding the Fourth Proportional to 450,055.27, 621,076.43 and 256,457.44

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Solution

The fourth proportional to 450,055.27, 621,076.43 and 256,457.44 is: 353,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,055.27 : 621,076.43 = 256,457.44 : x
  2. Step 2: Convert to fraction form
    450,055.27/621,076.43 = 256,457.44/x
  3. Step 3: Cross multiply
    450,055.27x = 621,076.43 × 256,457.44
  4. Step 4: Simplify right side
    450,055.27x = 159,279,666,894.47
  5. Step 5: Solve for x
    x = 159,279,666,894.47/450,055.27
  6. Step 6: Final answer
    x = 353,911.35

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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.