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Finding the Fourth Proportional to 316,953.30, 437,406.63 and 173,713.32

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Solution

The fourth proportional to 316,953.30, 437,406.63 and 173,713.32 is: 239,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,953.30 : 437,406.63 = 173,713.32 : x
  2. Step 2: Convert to fraction form
    316,953.30/437,406.63 = 173,713.32/x
  3. Step 3: Cross multiply
    316,953.30x = 437,406.63 × 173,713.32
  4. Step 4: Simplify right side
    316,953.30x = 75,983,357,887.31
  5. Step 5: Solve for x
    x = 75,983,357,887.31/316,953.30
  6. Step 6: Final answer
    x = 239,730.45

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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.