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Finding the Fourth Proportional to 346,717.30, 520,075.95 and 306,627.70

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Solution

The fourth proportional to 346,717.30, 520,075.95 and 306,627.70 is: 459,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,717.30 : 520,075.95 = 306,627.70 : x
  2. Step 2: Convert to fraction form
    346,717.30/520,075.95 = 306,627.70/x
  3. Step 3: Cross multiply
    346,717.30x = 520,075.95 × 306,627.70
  4. Step 4: Simplify right side
    346,717.30x = 159,469,692,373.82
  5. Step 5: Solve for x
    x = 159,469,692,373.82/346,717.30
  6. Step 6: Final answer
    x = 459,941.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.