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Finding the Fourth Proportional to 476,574.60, 657,688.26 and 275,370.60

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Solution

The fourth proportional to 476,574.60, 657,688.26 and 275,370.60 is: 380,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,574.60 : 657,688.26 = 275,370.60 : x
  2. Step 2: Convert to fraction form
    476,574.60/657,688.26 = 275,370.60/x
  3. Step 3: Cross multiply
    476,574.60x = 657,688.26 × 275,370.60
  4. Step 4: Simplify right side
    476,574.60x = 181,108,010,769.16
  5. Step 5: Solve for x
    x = 181,108,010,769.16/476,574.60
  6. Step 6: Final answer
    x = 380,020.28

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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.