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Finding the Fourth Proportional to 569,153.18, 785,400.56 and 314,487.97

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Solution

The fourth proportional to 569,153.18, 785,400.56 and 314,487.97 is: 433,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,153.18 : 785,400.56 = 314,487.97 : x
  2. Step 2: Convert to fraction form
    569,153.18/785,400.56 = 314,487.97/x
  3. Step 3: Cross multiply
    569,153.18x = 785,400.56 × 314,487.97
  4. Step 4: Simplify right side
    569,153.18x = 246,999,025,590.18
  5. Step 5: Solve for x
    x = 246,999,025,590.18/569,153.18
  6. Step 6: Final answer
    x = 433,976.36

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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.