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Finding the Fourth Proportional to 705,691.65, 973,849.21 and 383,404.39

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Solution

The fourth proportional to 705,691.65, 973,849.21 and 383,404.39 is: 529,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,691.65 : 973,849.21 = 383,404.39 : x
  2. Step 2: Convert to fraction form
    705,691.65/973,849.21 = 383,404.39/x
  3. Step 3: Cross multiply
    705,691.65x = 973,849.21 × 383,404.39
  4. Step 4: Simplify right side
    705,691.65x = 373,378,062,312.03
  5. Step 5: Solve for x
    x = 373,378,062,312.03/705,691.65
  6. Step 6: Final answer
    x = 529,095.20

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1.5x scale

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.