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Finding the Fourth Proportional to 835,794.18, 1,153,400.31 and 453,820.86

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Solution

The fourth proportional to 835,794.18, 1,153,400.31 and 453,820.86 is: 626,275.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,794.18 : 1,153,400.31 = 453,820.86 : x
  2. Step 2: Convert to fraction form
    835,794.18/1,153,400.31 = 453,820.86/x
  3. Step 3: Cross multiply
    835,794.18x = 1,153,400.31 × 453,820.86
  4. Step 4: Simplify right side
    835,794.18x = 523,437,120,608.47
  5. Step 5: Solve for x
    x = 523,437,120,608.47/835,794.18
  6. Step 6: Final answer
    x = 626,275.14

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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.