Home / 912,397.19-1,259,019.31-504,443.21

Finding the Fourth Proportional to 912,397.19, 1,259,019.31 and 504,443.21

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Solution

The fourth proportional to 912,397.19, 1,259,019.31 and 504,443.21 is: 696,082.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,397.19 : 1,259,019.31 = 504,443.21 : x
  2. Step 2: Convert to fraction form
    912,397.19/1,259,019.31 = 504,443.21/x
  3. Step 3: Cross multiply
    912,397.19x = 1,259,019.31 × 504,443.21
  4. Step 4: Simplify right side
    912,397.19x = 635,103,742,188.39
  5. Step 5: Solve for x
    x = 635,103,742,188.39/912,397.19
  6. Step 6: Final answer
    x = 696,082.53

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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.