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Finding the Fourth Proportional to 531,303.64, 733,192.57 and 289,585.47

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Solution

The fourth proportional to 531,303.64, 733,192.57 and 289,585.47 is: 399,624.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,303.64 : 733,192.57 = 289,585.47 : x
  2. Step 2: Convert to fraction form
    531,303.64/733,192.57 = 289,585.47/x
  3. Step 3: Cross multiply
    531,303.64x = 733,192.57 × 289,585.47
  4. Step 4: Simplify right side
    531,303.64x = 212,321,914,983.96
  5. Step 5: Solve for x
    x = 212,321,914,983.96/531,303.64
  6. Step 6: Final answer
    x = 399,624.43

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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.