Home / 872,028.60-1,308,878.10-451,606.20

Finding the Fourth Proportional to 872,028.60, 1,308,878.10 and 451,606.20

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Solution

The fourth proportional to 872,028.60, 1,308,878.10 and 451,606.20 is: 677,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,028.60 : 1,308,878.10 = 451,606.20 : x
  2. Step 2: Convert to fraction form
    872,028.60/1,308,878.10 = 451,606.20/x
  3. Step 3: Cross multiply
    872,028.60x = 1,308,878.10 × 451,606.20
  4. Step 4: Simplify right side
    872,028.60x = 591,097,465,004.22
  5. Step 5: Solve for x
    x = 591,097,465,004.22/872,028.60
  6. Step 6: Final answer
    x = 677,841.83

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Double scale
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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.