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Finding the Fourth Proportional to 624,276.80, 936,069.60 and 249,876.80

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Solution

The fourth proportional to 624,276.80, 936,069.60 and 249,876.80 is: 374,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,276.80 : 936,069.60 = 249,876.80 : x
  2. Step 2: Convert to fraction form
    624,276.80/936,069.60 = 249,876.80/x
  3. Step 3: Cross multiply
    624,276.80x = 936,069.60 × 249,876.80
  4. Step 4: Simplify right side
    624,276.80x = 233,902,076,225.28
  5. Step 5: Solve for x
    x = 233,902,076,225.28/624,276.80
  6. Step 6: Final answer
    x = 374,676.87

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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.