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Finding the Fourth Proportional to 368,433.56, 508,433.10 and 207,288.23

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Solution

The fourth proportional to 368,433.56, 508,433.10 and 207,288.23 is: 286,054.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,433.56 : 508,433.10 = 207,288.23 : x
  2. Step 2: Convert to fraction form
    368,433.56/508,433.10 = 207,288.23/x
  3. Step 3: Cross multiply
    368,433.56x = 508,433.10 × 207,288.23
  4. Step 4: Simplify right side
    368,433.56x = 105,392,194,830.25
  5. Step 5: Solve for x
    x = 105,392,194,830.25/368,433.56
  6. Step 6: Final answer
    x = 286,054.82

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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.