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Finding the Fourth Proportional to 624,091.60, 936,137.40 and 545,359.60

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Solution

The fourth proportional to 624,091.60, 936,137.40 and 545,359.60 is: 818,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,091.60 : 936,137.40 = 545,359.60 : x
  2. Step 2: Convert to fraction form
    624,091.60/936,137.40 = 545,359.60/x
  3. Step 3: Cross multiply
    624,091.60x = 936,137.40 × 545,359.60
  4. Step 4: Simplify right side
    624,091.60x = 510,531,518,009.04
  5. Step 5: Solve for x
    x = 510,531,518,009.04/624,091.60
  6. Step 6: Final answer
    x = 818,039.40

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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.