Home / 1,111,136.80-1,666,705.20-363,258.40

Finding the Fourth Proportional to 1,111,136.80, 1,666,705.20 and 363,258.40

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Solution

The fourth proportional to 1,111,136.80, 1,666,705.20 and 363,258.40 is: 544,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,136.80 : 1,666,705.20 = 363,258.40 : x
  2. Step 2: Convert to fraction form
    1,111,136.80/1,666,705.20 = 363,258.40/x
  3. Step 3: Cross multiply
    1,111,136.80x = 1,666,705.20 × 363,258.40
  4. Step 4: Simplify right side
    1,111,136.80x = 605,444,664,223.68
  5. Step 5: Solve for x
    x = 605,444,664,223.68/1,111,136.80
  6. Step 6: Final answer
    x = 544,887.60

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Half scale
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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.