Home / 804,500.81-1,109,893.67-518,187.07

Finding the Fourth Proportional to 804,500.81, 1,109,893.67 and 518,187.07

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Solution

The fourth proportional to 804,500.81, 1,109,893.67 and 518,187.07 is: 714,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,500.81 : 1,109,893.67 = 518,187.07 : x
  2. Step 2: Convert to fraction form
    804,500.81/1,109,893.67 = 518,187.07/x
  3. Step 3: Cross multiply
    804,500.81x = 1,109,893.67 × 518,187.07
  4. Step 4: Simplify right side
    804,500.81x = 575,132,543,319.38
  5. Step 5: Solve for x
    x = 575,132,543,319.38/804,500.81
  6. Step 6: Final answer
    x = 714,893.68

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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.