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Finding the Fourth Proportional to 705,763.67, 973,957.47 and 383,474.59

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Solution

The fourth proportional to 705,763.67, 973,957.47 and 383,474.59 is: 529,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,763.67 : 973,957.47 = 383,474.59 : x
  2. Step 2: Convert to fraction form
    705,763.67/973,957.47 = 383,474.59/x
  3. Step 3: Cross multiply
    705,763.67x = 973,957.47 × 383,474.59
  4. Step 4: Simplify right side
    705,763.67x = 373,487,937,612.76
  5. Step 5: Solve for x
    x = 373,487,937,612.76/705,763.67
  6. Step 6: Final answer
    x = 529,196.89

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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.