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Finding the Fourth Proportional to 368,301.24, 508,260.96 and 217,398.24

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Solution

The fourth proportional to 368,301.24, 508,260.96 and 217,398.24 is: 300,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,301.24 : 508,260.96 = 217,398.24 : x
  2. Step 2: Convert to fraction form
    368,301.24/508,260.96 = 217,398.24/x
  3. Step 3: Cross multiply
    368,301.24x = 508,260.96 × 217,398.24
  4. Step 4: Simplify right side
    368,301.24x = 110,495,038,164.71
  5. Step 5: Solve for x
    x = 110,495,038,164.71/368,301.24
  6. Step 6: Final answer
    x = 300,012.67

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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.