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Finding the Fourth Proportional to 515,374.34, 711,250.22 and 297,592.20

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Solution

The fourth proportional to 515,374.34, 711,250.22 and 297,592.20 is: 410,696.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,374.34 : 711,250.22 = 297,592.20 : x
  2. Step 2: Convert to fraction form
    515,374.34/711,250.22 = 297,592.20/x
  3. Step 3: Cross multiply
    515,374.34x = 711,250.22 × 297,592.20
  4. Step 4: Simplify right side
    515,374.34x = 211,662,518,464.27
  5. Step 5: Solve for x
    x = 211,662,518,464.27/515,374.34
  6. Step 6: Final answer
    x = 410,696.66

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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.