Home / 1,106,178.40-1,658,101.20-431,999.20

Finding the Fourth Proportional to 1,106,178.40, 1,658,101.20 and 431,999.20

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Solution

The fourth proportional to 1,106,178.40, 1,658,101.20 and 431,999.20 is: 647,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,178.40 : 1,658,101.20 = 431,999.20 : x
  2. Step 2: Convert to fraction form
    1,106,178.40/1,658,101.20 = 431,999.20/x
  3. Step 3: Cross multiply
    1,106,178.40x = 1,658,101.20 × 431,999.20
  4. Step 4: Simplify right side
    1,106,178.40x = 716,298,391,919.04
  5. Step 5: Solve for x
    x = 716,298,391,919.04/1,106,178.40
  6. Step 6: Final answer
    x = 647,543.28

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Double scale
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Similar ratio
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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.