Home / 992,921.40-1,488,653.10-393,586.20

Finding the Fourth Proportional to 992,921.40, 1,488,653.10 and 393,586.20

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Solution

The fourth proportional to 992,921.40, 1,488,653.10 and 393,586.20 is: 590,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,921.40 : 1,488,653.10 = 393,586.20 : x
  2. Step 2: Convert to fraction form
    992,921.40/1,488,653.10 = 393,586.20/x
  3. Step 3: Cross multiply
    992,921.40x = 1,488,653.10 × 393,586.20
  4. Step 4: Simplify right side
    992,921.40x = 585,913,316,747.22
  5. Step 5: Solve for x
    x = 585,913,316,747.22/992,921.40
  6. Step 6: Final answer
    x = 590,090.33

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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.