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Finding the Fourth Proportional to 569,860.80, 786,160.80 and 343,377.60

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Solution

The fourth proportional to 569,860.80, 786,160.80 and 343,377.60 is: 473,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,860.80 : 786,160.80 = 343,377.60 : x
  2. Step 2: Convert to fraction form
    569,860.80/786,160.80 = 343,377.60/x
  3. Step 3: Cross multiply
    569,860.80x = 786,160.80 × 343,377.60
  4. Step 4: Simplify right side
    569,860.80x = 269,950,008,718.08
  5. Step 5: Solve for x
    x = 269,950,008,718.08/569,860.80
  6. Step 6: Final answer
    x = 473,712.19

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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.