Home / 819,491.22-1,130,904.57-456,939.59

Finding the Fourth Proportional to 819,491.22, 1,130,904.57 and 456,939.59

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Solution

The fourth proportional to 819,491.22, 1,130,904.57 and 456,939.59 is: 630,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,491.22 : 1,130,904.57 = 456,939.59 : x
  2. Step 2: Convert to fraction form
    819,491.22/1,130,904.57 = 456,939.59/x
  3. Step 3: Cross multiply
    819,491.22x = 1,130,904.57 × 456,939.59
  4. Step 4: Simplify right side
    819,491.22x = 516,755,064,890.40
  5. Step 5: Solve for x
    x = 516,755,064,890.40/819,491.22
  6. Step 6: Final answer
    x = 630,580.36

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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.