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Finding the Fourth Proportional to 450,601.80, 621,818.16 and 257,005.14

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Solution

The fourth proportional to 450,601.80, 621,818.16 and 257,005.14 is: 354,660.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,601.80 : 621,818.16 = 257,005.14 : x
  2. Step 2: Convert to fraction form
    450,601.80/621,818.16 = 257,005.14/x
  3. Step 3: Cross multiply
    450,601.80x = 621,818.16 × 257,005.14
  4. Step 4: Simplify right side
    450,601.80x = 159,810,463,265.34
  5. Step 5: Solve for x
    x = 159,810,463,265.34/450,601.80
  6. Step 6: Final answer
    x = 354,660.06

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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.