Home / 623,878.20-936,254.70-399,783.60

Finding the Fourth Proportional to 623,878.20, 936,254.70 and 399,783.60

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Solution

The fourth proportional to 623,878.20, 936,254.70 and 399,783.60 is: 599,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,878.20 : 936,254.70 = 399,783.60 : x
  2. Step 2: Convert to fraction form
    623,878.20/936,254.70 = 399,783.60/x
  3. Step 3: Cross multiply
    623,878.20x = 936,254.70 × 399,783.60
  4. Step 4: Simplify right side
    623,878.20x = 374,299,274,482.92
  5. Step 5: Solve for x
    x = 374,299,274,482.92/623,878.20
  6. Step 6: Final answer
    x = 599,955.69

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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.