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Finding the Fourth Proportional to 314,930.60, 472,395.90 and 277,532.90

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Solution

The fourth proportional to 314,930.60, 472,395.90 and 277,532.90 is: 416,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,930.60 : 472,395.90 = 277,532.90 : x
  2. Step 2: Convert to fraction form
    314,930.60/472,395.90 = 277,532.90/x
  3. Step 3: Cross multiply
    314,930.60x = 472,395.90 × 277,532.90
  4. Step 4: Simplify right side
    314,930.60x = 131,105,404,075.11
  5. Step 5: Solve for x
    x = 131,105,404,075.11/314,930.60
  6. Step 6: Final answer
    x = 416,299.35

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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.