Home / 657,007.20-985,899.60-433,015.20

Finding the Fourth Proportional to 657,007.20, 985,899.60 and 433,015.20

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Solution

The fourth proportional to 657,007.20, 985,899.60 and 433,015.20 is: 649,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,007.20 : 985,899.60 = 433,015.20 : x
  2. Step 2: Convert to fraction form
    657,007.20/985,899.60 = 433,015.20/x
  3. Step 3: Cross multiply
    657,007.20x = 985,899.60 × 433,015.20
  4. Step 4: Simplify right side
    657,007.20x = 426,909,512,473.92
  5. Step 5: Solve for x
    x = 426,909,512,473.92/657,007.20
  6. Step 6: Final answer
    x = 649,779.05

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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.