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Finding the Fourth Proportional to 293,663, 405,220.56 and 172,777.70

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Solution

The fourth proportional to 293,663, 405,220.56 and 172,777.70 is: 238,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,663 : 405,220.56 = 172,777.70 : x
  2. Step 2: Convert to fraction form
    293,663/405,220.56 = 172,777.70/x
  3. Step 3: Cross multiply
    293,663x = 405,220.56 × 172,777.70
  4. Step 4: Simplify right side
    293,663x = 70,013,076,349.51
  5. Step 5: Solve for x
    x = 70,013,076,349.51/293,663
  6. Step 6: Final answer
    x = 238,413.00

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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.