Home / 912,386.49-1,259,039.25-504,456.30

Finding the Fourth Proportional to 912,386.49, 1,259,039.25 and 504,456.30

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Solution

The fourth proportional to 912,386.49, 1,259,039.25 and 504,456.30 is: 696,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,386.49 : 1,259,039.25 = 504,456.30 : x
  2. Step 2: Convert to fraction form
    912,386.49/1,259,039.25 = 504,456.30/x
  3. Step 3: Cross multiply
    912,386.49x = 1,259,039.25 × 504,456.30
  4. Step 4: Simplify right side
    912,386.49x = 635,130,281,609.78
  5. Step 5: Solve for x
    x = 635,130,281,609.78/912,386.49
  6. Step 6: Final answer
    x = 696,119.78

Related Problems

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Half scale
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Double scale
Find fourth proportional to 912,387.49, 1,259,040.63 and 504,457.30
Similar ratio
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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.