Home / 941,065.79-1,298,668.10-511,345.80

Finding the Fourth Proportional to 941,065.79, 1,298,668.10 and 511,345.80

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Solution

The fourth proportional to 941,065.79, 1,298,668.10 and 511,345.80 is: 705,655.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,065.79 : 1,298,668.10 = 511,345.80 : x
  2. Step 2: Convert to fraction form
    941,065.79/1,298,668.10 = 511,345.80/x
  3. Step 3: Cross multiply
    941,065.79x = 1,298,668.10 × 511,345.80
  4. Step 4: Simplify right side
    941,065.79x = 664,068,479,807.35
  5. Step 5: Solve for x
    x = 664,068,479,807.35/941,065.79
  6. Step 6: Final answer
    x = 705,655.75

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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.