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Finding the Fourth Proportional to 574,408.92, 792,698.28 and 319,777.32

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Solution

The fourth proportional to 574,408.92, 792,698.28 and 319,777.32 is: 441,300.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,408.92 : 792,698.28 = 319,777.32 : x
  2. Step 2: Convert to fraction form
    574,408.92/792,698.28 = 319,777.32/x
  3. Step 3: Cross multiply
    574,408.92x = 792,698.28 × 319,777.32
  4. Step 4: Simplify right side
    574,408.92x = 253,486,931,547.01
  5. Step 5: Solve for x
    x = 253,486,931,547.01/574,408.92
  6. Step 6: Final answer
    x = 441,300.48

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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.