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Finding the Fourth Proportional to 372,989.90, 559,488.69 and 298,583.00

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Solution

The fourth proportional to 372,989.90, 559,488.69 and 298,583.00 is: 447,877.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,989.90 : 559,488.69 = 298,583.00 : x
  2. Step 2: Convert to fraction form
    372,989.90/559,488.69 = 298,583.00/x
  3. Step 3: Cross multiply
    372,989.90x = 559,488.69 × 298,583.00
  4. Step 4: Simplify right side
    372,989.90x = 167,053,808,728.83
  5. Step 5: Solve for x
    x = 167,053,808,728.83/372,989.90
  6. Step 6: Final answer
    x = 447,877.57

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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.