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Finding the Fourth Proportional to 624,139.80, 936,209.70 and 529,661.40

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Solution

The fourth proportional to 624,139.80, 936,209.70 and 529,661.40 is: 794,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,139.80 : 936,209.70 = 529,661.40 : x
  2. Step 2: Convert to fraction form
    624,139.80/936,209.70 = 529,661.40/x
  3. Step 3: Cross multiply
    624,139.80x = 936,209.70 × 529,661.40
  4. Step 4: Simplify right side
    624,139.80x = 495,874,140,395.58
  5. Step 5: Solve for x
    x = 495,874,140,395.58/624,139.80
  6. Step 6: Final answer
    x = 794,492.10

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Similar ratio
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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.