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Finding the Fourth Proportional to 550,113.21, 759,404.93 and 346,463.41

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Solution

The fourth proportional to 550,113.21, 759,404.93 and 346,463.41 is: 478,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,113.21 : 759,404.93 = 346,463.41 : x
  2. Step 2: Convert to fraction form
    550,113.21/759,404.93 = 346,463.41/x
  3. Step 3: Cross multiply
    550,113.21x = 759,404.93 × 346,463.41
  4. Step 4: Simplify right side
    550,113.21x = 263,106,021,618.61
  5. Step 5: Solve for x
    x = 263,106,021,618.61/550,113.21
  6. Step 6: Final answer
    x = 478,276.14

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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.