Home / 805,946.81-1,111,443.22-515,650.23

Finding the Fourth Proportional to 805,946.81, 1,111,443.22 and 515,650.23

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Solution

The fourth proportional to 805,946.81, 1,111,443.22 and 515,650.23 is: 711,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,946.81 : 1,111,443.22 = 515,650.23 : x
  2. Step 2: Convert to fraction form
    805,946.81/1,111,443.22 = 515,650.23/x
  3. Step 3: Cross multiply
    805,946.81x = 1,111,443.22 × 515,650.23
  4. Step 4: Simplify right side
    805,946.81x = 573,115,952,024.94
  5. Step 5: Solve for x
    x = 573,115,952,024.94/805,946.81
  6. Step 6: Final answer
    x = 711,108.90

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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.