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Finding the Fourth Proportional to 529,476.35, 730,683.01 and 287,758.93

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Solution

The fourth proportional to 529,476.35, 730,683.01 and 287,758.93 is: 397,110.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,476.35 : 730,683.01 = 287,758.93 : x
  2. Step 2: Convert to fraction form
    529,476.35/730,683.01 = 287,758.93/x
  3. Step 3: Cross multiply
    529,476.35x = 730,683.01 × 287,758.93
  4. Step 4: Simplify right side
    529,476.35x = 210,260,559,687.99
  5. Step 5: Solve for x
    x = 210,260,559,687.99/529,476.35
  6. Step 6: Final answer
    x = 397,110.39

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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.