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Finding the Fourth Proportional to 835,751.79, 1,153,342.06 and 453,778.57

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Solution

The fourth proportional to 835,751.79, 1,153,342.06 and 453,778.57 is: 626,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,751.79 : 1,153,342.06 = 453,778.57 : x
  2. Step 2: Convert to fraction form
    835,751.79/1,153,342.06 = 453,778.57/x
  3. Step 3: Cross multiply
    835,751.79x = 1,153,342.06 × 453,778.57
  4. Step 4: Simplify right side
    835,751.79x = 523,361,911,014.89
  5. Step 5: Solve for x
    x = 523,361,911,014.89/835,751.79
  6. Step 6: Final answer
    x = 626,216.92

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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.