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Finding the Fourth Proportional to 621,803.60, 933,252.15 and 368,767.70

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Solution

The fourth proportional to 621,803.60, 933,252.15 and 368,767.70 is: 553,475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,803.60 : 933,252.15 = 368,767.70 : x
  2. Step 2: Convert to fraction form
    621,803.60/933,252.15 = 368,767.70/x
  3. Step 3: Cross multiply
    621,803.60x = 933,252.15 × 368,767.70
  4. Step 4: Simplify right side
    621,803.60x = 344,153,248,875.56
  5. Step 5: Solve for x
    x = 344,153,248,875.56/621,803.60
  6. Step 6: Final answer
    x = 553,475.81

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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.