Home / 972,189.66-1,341,421.39-558,646.54

Finding the Fourth Proportional to 972,189.66, 1,341,421.39 and 558,646.54

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Solution

The fourth proportional to 972,189.66, 1,341,421.39 and 558,646.54 is: 770,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,189.66 : 1,341,421.39 = 558,646.54 : x
  2. Step 2: Convert to fraction form
    972,189.66/1,341,421.39 = 558,646.54/x
  3. Step 3: Cross multiply
    972,189.66x = 1,341,421.39 × 558,646.54
  4. Step 4: Simplify right side
    972,189.66x = 749,380,415,550.25
  5. Step 5: Solve for x
    x = 749,380,415,550.25/972,189.66
  6. Step 6: Final answer
    x = 770,817.10

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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.