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Finding the Fourth Proportional to 577,785.39, 797,336.76 and 319,681.11

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Solution

The fourth proportional to 577,785.39, 797,336.76 and 319,681.11 is: 441,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,785.39 : 797,336.76 = 319,681.11 : x
  2. Step 2: Convert to fraction form
    577,785.39/797,336.76 = 319,681.11/x
  3. Step 3: Cross multiply
    577,785.39x = 797,336.76 × 319,681.11
  4. Step 4: Simplify right side
    577,785.39x = 254,893,500,480.60
  5. Step 5: Solve for x
    x = 254,893,500,480.60/577,785.39
  6. Step 6: Final answer
    x = 441,156.02

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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.