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Finding the Fourth Proportional to 835,782.72, 1,153,347.78 and 453,800.76

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Solution

The fourth proportional to 835,782.72, 1,153,347.78 and 453,800.76 is: 626,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,782.72 : 1,153,347.78 = 453,800.76 : x
  2. Step 2: Convert to fraction form
    835,782.72/1,153,347.78 = 453,800.76/x
  3. Step 3: Cross multiply
    835,782.72x = 1,153,347.78 × 453,800.76
  4. Step 4: Simplify right side
    835,782.72x = 523,390,099,108.31
  5. Step 5: Solve for x
    x = 523,390,099,108.31/835,782.72
  6. Step 6: Final answer
    x = 626,227.47

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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.