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Finding the Fourth Proportional to 450,003.66, 621,127.53 and 256,513.23

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Solution

The fourth proportional to 450,003.66, 621,127.53 and 256,513.23 is: 354,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,003.66 : 621,127.53 = 256,513.23 : x
  2. Step 2: Convert to fraction form
    450,003.66/621,127.53 = 256,513.23/x
  3. Step 3: Cross multiply
    450,003.66x = 621,127.53 × 256,513.23
  4. Step 4: Simplify right side
    450,003.66x = 159,327,428,962.22
  5. Step 5: Solve for x
    x = 159,327,428,962.22/450,003.66
  6. Step 6: Final answer
    x = 354,058.07

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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.