Home / 1,112,666.40-1,668,999.60-403,203.60

Finding the Fourth Proportional to 1,112,666.40, 1,668,999.60 and 403,203.60

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Solution

The fourth proportional to 1,112,666.40, 1,668,999.60 and 403,203.60 is: 604,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,666.40 : 1,668,999.60 = 403,203.60 : x
  2. Step 2: Convert to fraction form
    1,112,666.40/1,668,999.60 = 403,203.60/x
  3. Step 3: Cross multiply
    1,112,666.40x = 1,668,999.60 × 403,203.60
  4. Step 4: Simplify right side
    1,112,666.40x = 672,946,647,118.56
  5. Step 5: Solve for x
    x = 672,946,647,118.56/1,112,666.40
  6. Step 6: Final answer
    x = 604,805.40

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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.