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Finding the Fourth Proportional to 369,148.60, 553,722.90 and 366,815.80

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Solution

The fourth proportional to 369,148.60, 553,722.90 and 366,815.80 is: 550,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,148.60 : 553,722.90 = 366,815.80 : x
  2. Step 2: Convert to fraction form
    369,148.60/553,722.90 = 366,815.80/x
  3. Step 3: Cross multiply
    369,148.60x = 553,722.90 × 366,815.80
  4. Step 4: Simplify right side
    369,148.60x = 203,114,308,541.82
  5. Step 5: Solve for x
    x = 203,114,308,541.82/369,148.60
  6. Step 6: Final answer
    x = 550,223.70

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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.