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Finding the Fourth Proportional to 362,921.80, 508,615.40 and 362,921.80

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Solution

The fourth proportional to 362,921.80, 508,615.40 and 362,921.80 is: 508,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,921.80 : 508,615.40 = 362,921.80 : x
  2. Step 2: Convert to fraction form
    362,921.80/508,615.40 = 362,921.80/x
  3. Step 3: Cross multiply
    362,921.80x = 508,615.40 × 362,921.80
  4. Step 4: Simplify right side
    362,921.80x = 184,587,616,475.72
  5. Step 5: Solve for x
    x = 184,587,616,475.72/362,921.80
  6. Step 6: Final answer
    x = 508,615.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.