Home / 1,100,042.12-1,518,128.28-616,607.40

Finding the Fourth Proportional to 1,100,042.12, 1,518,128.28 and 616,607.40

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Solution

The fourth proportional to 1,100,042.12, 1,518,128.28 and 616,607.40 is: 850,957.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,042.12 : 1,518,128.28 = 616,607.40 : x
  2. Step 2: Convert to fraction form
    1,100,042.12/1,518,128.28 = 616,607.40/x
  3. Step 3: Cross multiply
    1,100,042.12x = 1,518,128.28 × 616,607.40
  4. Step 4: Simplify right side
    1,100,042.12x = 936,089,131,597.27
  5. Step 5: Solve for x
    x = 936,089,131,597.27/1,100,042.12
  6. Step 6: Final answer
    x = 850,957.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.