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Finding the Fourth Proportional to 517,003.56, 712,605.06 and 355,585.32

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Solution

The fourth proportional to 517,003.56, 712,605.06 and 355,585.32 is: 490,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,003.56 : 712,605.06 = 355,585.32 : x
  2. Step 2: Convert to fraction form
    517,003.56/712,605.06 = 355,585.32/x
  3. Step 3: Cross multiply
    517,003.56x = 712,605.06 × 355,585.32
  4. Step 4: Simplify right side
    517,003.56x = 253,391,898,293.72
  5. Step 5: Solve for x
    x = 253,391,898,293.72/517,003.56
  6. Step 6: Final answer
    x = 490,116.35

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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.