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Finding the Fourth Proportional to 629,779.17, 868,603.68 and 436,259.91

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Solution

The fourth proportional to 629,779.17, 868,603.68 and 436,259.91 is: 601,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,779.17 : 868,603.68 = 436,259.91 : x
  2. Step 2: Convert to fraction form
    629,779.17/868,603.68 = 436,259.91/x
  3. Step 3: Cross multiply
    629,779.17x = 868,603.68 × 436,259.91
  4. Step 4: Simplify right side
    629,779.17x = 378,936,963,262.47
  5. Step 5: Solve for x
    x = 378,936,963,262.47/629,779.17
  6. Step 6: Final answer
    x = 601,698.15

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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.