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Finding the Fourth Proportional to 705,569.16, 973,692.36 and 383,281.86

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Solution

The fourth proportional to 705,569.16, 973,692.36 and 383,281.86 is: 528,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,569.16 : 973,692.36 = 383,281.86 : x
  2. Step 2: Convert to fraction form
    705,569.16/973,692.36 = 383,281.86/x
  3. Step 3: Cross multiply
    705,569.16x = 973,692.36 × 383,281.86
  4. Step 4: Simplify right side
    705,569.16x = 373,198,618,808.59
  5. Step 5: Solve for x
    x = 373,198,618,808.59/705,569.16
  6. Step 6: Final answer
    x = 528,932.73

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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.