Home / 1,100,514.60-1,650,771.90-390,614.40

Finding the Fourth Proportional to 1,100,514.60, 1,650,771.90 and 390,614.40

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Solution

The fourth proportional to 1,100,514.60, 1,650,771.90 and 390,614.40 is: 585,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,514.60 : 1,650,771.90 = 390,614.40 : x
  2. Step 2: Convert to fraction form
    1,100,514.60/1,650,771.90 = 390,614.40/x
  3. Step 3: Cross multiply
    1,100,514.60x = 1,650,771.90 × 390,614.40
  4. Step 4: Simplify right side
    1,100,514.60x = 644,815,275,255.36
  5. Step 5: Solve for x
    x = 644,815,275,255.36/1,100,514.60
  6. Step 6: Final answer
    x = 585,921.60

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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.