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Finding the Fourth Proportional to 569,918.52, 786,495.96 and 315,268.56

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Solution

The fourth proportional to 569,918.52, 786,495.96 and 315,268.56 is: 435,075.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,918.52 : 786,495.96 = 315,268.56 : x
  2. Step 2: Convert to fraction form
    569,918.52/786,495.96 = 315,268.56/x
  3. Step 3: Cross multiply
    569,918.52x = 786,495.96 × 315,268.56
  4. Step 4: Simplify right side
    569,918.52x = 247,957,448,755.02
  5. Step 5: Solve for x
    x = 247,957,448,755.02/569,918.52
  6. Step 6: Final answer
    x = 435,075.26

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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.