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Finding the Fourth Proportional to 569,969.46, 786,581.01 and 315,316.26

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Solution

The fourth proportional to 569,969.46, 786,581.01 and 315,316.26 is: 435,149.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,969.46 : 786,581.01 = 315,316.26 : x
  2. Step 2: Convert to fraction form
    569,969.46/786,581.01 = 315,316.26/x
  3. Step 3: Cross multiply
    569,969.46x = 786,581.01 × 315,316.26
  4. Step 4: Simplify right side
    569,969.46x = 248,021,782,260.22
  5. Step 5: Solve for x
    x = 248,021,782,260.22/569,969.46
  6. Step 6: Final answer
    x = 435,149.25

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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.