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Finding the Fourth Proportional to 671,603.63, 926,829.62 and 365,696.78

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Solution

The fourth proportional to 671,603.63, 926,829.62 and 365,696.78 is: 504,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,603.63 : 926,829.62 = 365,696.78 : x
  2. Step 2: Convert to fraction form
    671,603.63/926,829.62 = 365,696.78/x
  3. Step 3: Cross multiply
    671,603.63x = 926,829.62 × 365,696.78
  4. Step 4: Simplify right side
    671,603.63x = 338,938,601,179.99
  5. Step 5: Solve for x
    x = 338,938,601,179.99/671,603.63
  6. Step 6: Final answer
    x = 504,670.60

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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.