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Finding the Fourth Proportional to 531,642.96, 794,075.40 and 480,964.50

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Solution

The fourth proportional to 531,642.96, 794,075.40 and 480,964.50 is: 718,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,642.96 : 794,075.40 = 480,964.50 : x
  2. Step 2: Convert to fraction form
    531,642.96/794,075.40 = 480,964.50/x
  3. Step 3: Cross multiply
    531,642.96x = 794,075.40 × 480,964.50
  4. Step 4: Simplify right side
    531,642.96x = 381,922,077,723.30
  5. Step 5: Solve for x
    x = 381,922,077,723.30/531,642.96
  6. Step 6: Final answer
    x = 718,380.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.