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Finding the Fourth Proportional to 622,784.76, 859,445.58 and 350,855.91

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Solution

The fourth proportional to 622,784.76, 859,445.58 and 350,855.91 is: 484,182.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,784.76 : 859,445.58 = 350,855.91 : x
  2. Step 2: Convert to fraction form
    622,784.76/859,445.58 = 350,855.91/x
  3. Step 3: Cross multiply
    622,784.76x = 859,445.58 × 350,855.91
  4. Step 4: Simplify right side
    622,784.76x = 301,541,561,066.38
  5. Step 5: Solve for x
    x = 301,541,561,066.38/622,784.76
  6. Step 6: Final answer
    x = 484,182.63

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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.