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Finding the Fourth Proportional to 577,784.39, 797,335.38 and 319,680.11

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Solution

The fourth proportional to 577,784.39, 797,335.38 and 319,680.11 is: 441,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,784.39 : 797,335.38 = 319,680.11 : x
  2. Step 2: Convert to fraction form
    577,784.39/797,335.38 = 319,680.11/x
  3. Step 3: Cross multiply
    577,784.39x = 797,335.38 × 319,680.11
  4. Step 4: Simplify right side
    577,784.39x = 254,892,263,978.63
  5. Step 5: Solve for x
    x = 254,892,263,978.63/577,784.39
  6. Step 6: Final answer
    x = 441,154.64

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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.