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Finding the Fourth Proportional to 705,543.73, 973,657.61 and 383,260.21

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Solution

The fourth proportional to 705,543.73, 973,657.61 and 383,260.21 is: 528,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,543.73 : 973,657.61 = 383,260.21 : x
  2. Step 2: Convert to fraction form
    705,543.73/973,657.61 = 383,260.21/x
  3. Step 3: Cross multiply
    705,543.73x = 973,657.61 × 383,260.21
  4. Step 4: Simplify right side
    705,543.73x = 373,164,218,160.40
  5. Step 5: Solve for x
    x = 373,164,218,160.40/705,543.73
  6. Step 6: Final answer
    x = 528,903.03

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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.