Home / 819,131.07-1,130,406.13-456,577.92

Finding the Fourth Proportional to 819,131.07, 1,130,406.13 and 456,577.92

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Solution

The fourth proportional to 819,131.07, 1,130,406.13 and 456,577.92 is: 630,080.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,131.07 : 1,130,406.13 = 456,577.92 : x
  2. Step 2: Convert to fraction form
    819,131.07/1,130,406.13 = 456,577.92/x
  3. Step 3: Cross multiply
    819,131.07x = 1,130,406.13 × 456,577.92
  4. Step 4: Simplify right side
    819,131.07x = 516,118,479,590.65
  5. Step 5: Solve for x
    x = 516,118,479,590.65/819,131.07
  6. Step 6: Final answer
    x = 630,080.46

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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.