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Finding the Fourth Proportional to 574,457.68, 792,783 and 319,803.28

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Solution

The fourth proportional to 574,457.68, 792,783 and 319,803.28 is: 441,346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,457.68 : 792,783 = 319,803.28 : x
  2. Step 2: Convert to fraction form
    574,457.68/792,783 = 319,803.28/x
  3. Step 3: Cross multiply
    574,457.68x = 792,783 × 319,803.28
  4. Step 4: Simplify right side
    574,457.68x = 253,534,603,728.24
  5. Step 5: Solve for x
    x = 253,534,603,728.24/574,457.68
  6. Step 6: Final answer
    x = 441,346.01

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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.