Home / 1,109,028.60-1,663,542.90-611,364.60

Finding the Fourth Proportional to 1,109,028.60, 1,663,542.90 and 611,364.60

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Solution

The fourth proportional to 1,109,028.60, 1,663,542.90 and 611,364.60 is: 917,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,028.60 : 1,663,542.90 = 611,364.60 : x
  2. Step 2: Convert to fraction form
    1,109,028.60/1,663,542.90 = 611,364.60/x
  3. Step 3: Cross multiply
    1,109,028.60x = 1,663,542.90 × 611,364.60
  4. Step 4: Simplify right side
    1,109,028.60x = 1,017,031,239,641.34
  5. Step 5: Solve for x
    x = 1,017,031,239,641.34/1,109,028.60
  6. Step 6: Final answer
    x = 917,046.90

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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.