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Finding the Fourth Proportional to 623,959.70, 936,112.35 and 414,007.70

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Solution

The fourth proportional to 623,959.70, 936,112.35 and 414,007.70 is: 621,126.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,959.70 : 936,112.35 = 414,007.70 : x
  2. Step 2: Convert to fraction form
    623,959.70/936,112.35 = 414,007.70/x
  3. Step 3: Cross multiply
    623,959.70x = 936,112.35 × 414,007.70
  4. Step 4: Simplify right side
    623,959.70x = 387,557,720,965.10
  5. Step 5: Solve for x
    x = 387,557,720,965.10/623,959.70
  6. Step 6: Final answer
    x = 621,126.21

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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.