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Finding the Fourth Proportional to 581,913.20, 873,258.60 and 266,207.60

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Solution

The fourth proportional to 581,913.20, 873,258.60 and 266,207.60 is: 399,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,913.20 : 873,258.60 = 266,207.60 : x
  2. Step 2: Convert to fraction form
    581,913.20/873,258.60 = 266,207.60/x
  3. Step 3: Cross multiply
    581,913.20x = 873,258.60 × 266,207.60
  4. Step 4: Simplify right side
    581,913.20x = 232,468,076,085.36
  5. Step 5: Solve for x
    x = 232,468,076,085.36/581,913.20
  6. Step 6: Final answer
    x = 399,489.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.