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Finding the Fourth Proportional to 383,702.40, 529,117.11 and 254,595.69

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Solution

The fourth proportional to 383,702.40, 529,117.11 and 254,595.69 is: 351,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,702.40 : 529,117.11 = 254,595.69 : x
  2. Step 2: Convert to fraction form
    383,702.40/529,117.11 = 254,595.69/x
  3. Step 3: Cross multiply
    383,702.40x = 529,117.11 × 254,595.69
  4. Step 4: Simplify right side
    383,702.40x = 134,710,935,711.26
  5. Step 5: Solve for x
    x = 134,710,935,711.26/383,702.40
  6. Step 6: Final answer
    x = 351,081.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.