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Finding the Fourth Proportional to 622,649.30, 859,001.10 and 459,695.66

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Solution

The fourth proportional to 622,649.30, 859,001.10 and 459,695.66 is: 634,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,649.30 : 859,001.10 = 459,695.66 : x
  2. Step 2: Convert to fraction form
    622,649.30/859,001.10 = 459,695.66/x
  3. Step 3: Cross multiply
    622,649.30x = 859,001.10 × 459,695.66
  4. Step 4: Simplify right side
    622,649.30x = 394,879,077,605.23
  5. Step 5: Solve for x
    x = 394,879,077,605.23/622,649.30
  6. Step 6: Final answer
    x = 634,191.80

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Double scale
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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.