Home / 931,801.08-1,285,868.56-518,335.84

Finding the Fourth Proportional to 931,801.08, 1,285,868.56 and 518,335.84

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Solution

The fourth proportional to 931,801.08, 1,285,868.56 and 518,335.84 is: 715,294.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,801.08 : 1,285,868.56 = 518,335.84 : x
  2. Step 2: Convert to fraction form
    931,801.08/1,285,868.56 = 518,335.84/x
  3. Step 3: Cross multiply
    931,801.08x = 1,285,868.56 × 518,335.84
  4. Step 4: Simplify right side
    931,801.08x = 666,511,760,177.19
  5. Step 5: Solve for x
    x = 666,511,760,177.19/931,801.08
  6. Step 6: Final answer
    x = 715,294.04

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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.