Home / 903,911.70-1,355,867.55-525,998.10

Finding the Fourth Proportional to 903,911.70, 1,355,867.55 and 525,998.10

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Solution

The fourth proportional to 903,911.70, 1,355,867.55 and 525,998.10 is: 788,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,911.70 : 1,355,867.55 = 525,998.10 : x
  2. Step 2: Convert to fraction form
    903,911.70/1,355,867.55 = 525,998.10/x
  3. Step 3: Cross multiply
    903,911.70x = 1,355,867.55 × 525,998.10
  4. Step 4: Simplify right side
    903,911.70x = 713,183,755,151.66
  5. Step 5: Solve for x
    x = 713,183,755,151.66/903,911.70
  6. Step 6: Final answer
    x = 788,997.15

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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.