Home / 1,329,812.63-1,994,999.18-431,184.30

Finding the Fourth Proportional to 1,329,812.63, 1,994,999.18 and 431,184.30

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Solution

The fourth proportional to 1,329,812.63, 1,994,999.18 and 431,184.30 is: 646,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,812.63 : 1,994,999.18 = 431,184.30 : x
  2. Step 2: Convert to fraction form
    1,329,812.63/1,994,999.18 = 431,184.30/x
  3. Step 3: Cross multiply
    1,329,812.63x = 1,994,999.18 × 431,184.30
  4. Step 4: Simplify right side
    1,329,812.63x = 860,212,322,772.95
  5. Step 5: Solve for x
    x = 860,212,322,772.95/1,329,812.63
  6. Step 6: Final answer
    x = 646,867.32

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1.5x scale

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.