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Finding the Fourth Proportional to 705,772.67, 973,970.63 and 383,483.66

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Solution

The fourth proportional to 705,772.67, 973,970.63 and 383,483.66 is: 529,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,772.67 : 973,970.63 = 383,483.66 : x
  2. Step 2: Convert to fraction form
    705,772.67/973,970.63 = 383,483.66/x
  3. Step 3: Cross multiply
    705,772.67x = 973,970.63 × 383,483.66
  4. Step 4: Simplify right side
    705,772.67x = 373,501,818,013.76
  5. Step 5: Solve for x
    x = 373,501,818,013.76/705,772.67
  6. Step 6: Final answer
    x = 529,209.81

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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.