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Finding the Fourth Proportional to 413,615.70, 619,111.35 and 413,615.70

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Solution

The fourth proportional to 413,615.70, 619,111.35 and 413,615.70 is: 619,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,615.70 : 619,111.35 = 413,615.70 : x
  2. Step 2: Convert to fraction form
    413,615.70/619,111.35 = 413,615.70/x
  3. Step 3: Cross multiply
    413,615.70x = 619,111.35 × 413,615.70
  4. Step 4: Simplify right side
    413,615.70x = 256,074,174,408.20
  5. Step 5: Solve for x
    x = 256,074,174,408.20/413,615.70
  6. Step 6: Final answer
    x = 619,111.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.