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Finding the Fourth Proportional to 574,393.05, 792,655.70 and 316,264.61

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Solution

The fourth proportional to 574,393.05, 792,655.70 and 316,264.61 is: 436,441.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,393.05 : 792,655.70 = 316,264.61 : x
  2. Step 2: Convert to fraction form
    574,393.05/792,655.70 = 316,264.61/x
  3. Step 3: Cross multiply
    574,393.05x = 792,655.70 × 316,264.61
  4. Step 4: Simplify right side
    574,393.05x = 250,688,946,225.09
  5. Step 5: Solve for x
    x = 250,688,946,225.09/574,393.05
  6. Step 6: Final answer
    x = 436,441.47

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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.