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Finding the Fourth Proportional to 450,064.01, 621,082.32 and 256,483.23

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Solution

The fourth proportional to 450,064.01, 621,082.32 and 256,483.23 is: 353,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,064.01 : 621,082.32 = 256,483.23 : x
  2. Step 2: Convert to fraction form
    450,064.01/621,082.32 = 256,483.23/x
  3. Step 3: Cross multiply
    450,064.01x = 621,082.32 × 256,483.23
  4. Step 4: Simplify right side
    450,064.01x = 159,297,199,529.49
  5. Step 5: Solve for x
    x = 159,297,199,529.49/450,064.01
  6. Step 6: Final answer
    x = 353,943.43

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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.