Home / 912,590.40-1,366,261.20-558,296.40

Finding the Fourth Proportional to 912,590.40, 1,366,261.20 and 558,296.40

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Solution

The fourth proportional to 912,590.40, 1,366,261.20 and 558,296.40 is: 835,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,590.40 : 1,366,261.20 = 558,296.40 : x
  2. Step 2: Convert to fraction form
    912,590.40/1,366,261.20 = 558,296.40/x
  3. Step 3: Cross multiply
    912,590.40x = 1,366,261.20 × 558,296.40
  4. Step 4: Simplify right side
    912,590.40x = 762,778,709,419.68
  5. Step 5: Solve for x
    x = 762,778,709,419.68/912,590.40
  6. Step 6: Final answer
    x = 835,839.07

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Double scale
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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.