Home / 623,968.18-936,055.74-219,055.30

Finding the Fourth Proportional to 623,968.18, 936,055.74 and 219,055.30

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Solution

The fourth proportional to 623,968.18, 936,055.74 and 219,055.30 is: 328,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,968.18 : 936,055.74 = 219,055.30 : x
  2. Step 2: Convert to fraction form
    623,968.18/936,055.74 = 219,055.30/x
  3. Step 3: Cross multiply
    623,968.18x = 936,055.74 × 219,055.30
  4. Step 4: Simplify right side
    623,968.18x = 205,047,970,942.42
  5. Step 5: Solve for x
    x = 205,047,970,942.42/623,968.18
  6. Step 6: Final answer
    x = 328,619.28

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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.