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Finding the Fourth Proportional to 619,702.56, 929,456.64 and 170,457.12

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Solution

The fourth proportional to 619,702.56, 929,456.64 and 170,457.12 is: 255,658.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,702.56 : 929,456.64 = 170,457.12 : x
  2. Step 2: Convert to fraction form
    619,702.56/929,456.64 = 170,457.12/x
  3. Step 3: Cross multiply
    619,702.56x = 929,456.64 × 170,457.12
  4. Step 4: Simplify right side
    619,702.56x = 158,432,502,019.28
  5. Step 5: Solve for x
    x = 158,432,502,019.28/619,702.56
  6. Step 6: Final answer
    x = 255,658.94

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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.