Home / 691,109.10-1,036,663.65-651,743.10

Finding the Fourth Proportional to 691,109.10, 1,036,663.65 and 651,743.10

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Solution

The fourth proportional to 691,109.10, 1,036,663.65 and 651,743.10 is: 977,614.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,109.10 : 1,036,663.65 = 651,743.10 : x
  2. Step 2: Convert to fraction form
    691,109.10/1,036,663.65 = 651,743.10/x
  3. Step 3: Cross multiply
    691,109.10x = 1,036,663.65 × 651,743.10
  4. Step 4: Simplify right side
    691,109.10x = 675,638,380,908.32
  5. Step 5: Solve for x
    x = 675,638,380,908.32/691,109.10
  6. Step 6: Final answer
    x = 977,614.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.