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Finding the Fourth Proportional to 368,303.24, 508,263.72 and 217,400.24

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Solution

The fourth proportional to 368,303.24, 508,263.72 and 217,400.24 is: 300,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,303.24 : 508,263.72 = 217,400.24 : x
  2. Step 2: Convert to fraction form
    368,303.24/508,263.72 = 217,400.24/x
  3. Step 3: Cross multiply
    368,303.24x = 508,263.72 × 217,400.24
  4. Step 4: Simplify right side
    368,303.24x = 110,496,654,711.29
  5. Step 5: Solve for x
    x = 110,496,654,711.29/368,303.24
  6. Step 6: Final answer
    x = 300,015.43

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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.