Home / 921,367.84-1,271,053.20-539,160.16

Finding the Fourth Proportional to 921,367.84, 1,271,053.20 and 539,160.16

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Solution

The fourth proportional to 921,367.84, 1,271,053.20 and 539,160.16 is: 743,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,367.84 : 1,271,053.20 = 539,160.16 : x
  2. Step 2: Convert to fraction form
    921,367.84/1,271,053.20 = 539,160.16/x
  3. Step 3: Cross multiply
    921,367.84x = 1,271,053.20 × 539,160.16
  4. Step 4: Simplify right side
    921,367.84x = 685,301,246,680.51
  5. Step 5: Solve for x
    x = 685,301,246,680.51/921,367.84
  6. Step 6: Final answer
    x = 743,786.81

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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.