Home / 805,657.92-1,111,782.52-443,080.68

Finding the Fourth Proportional to 805,657.92, 1,111,782.52 and 443,080.68

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Solution

The fourth proportional to 805,657.92, 1,111,782.52 and 443,080.68 is: 611,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,657.92 : 1,111,782.52 = 443,080.68 : x
  2. Step 2: Convert to fraction form
    805,657.92/1,111,782.52 = 443,080.68/x
  3. Step 3: Cross multiply
    805,657.92x = 1,111,782.52 × 443,080.68
  4. Step 4: Simplify right side
    805,657.92x = 492,609,354,973.71
  5. Step 5: Solve for x
    x = 492,609,354,973.71/805,657.92
  6. Step 6: Final answer
    x = 611,437.36

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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.