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Finding the Fourth Proportional to 416,531, 624,798.56 and 100,987.92

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Solution

The fourth proportional to 416,531, 624,798.56 and 100,987.92 is: 151,482.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,531 : 624,798.56 = 100,987.92 : x
  2. Step 2: Convert to fraction form
    416,531/624,798.56 = 100,987.92/x
  3. Step 3: Cross multiply
    416,531x = 624,798.56 × 100,987.92
  4. Step 4: Simplify right side
    416,531x = 63,097,106,993.40
  5. Step 5: Solve for x
    x = 63,097,106,993.40/416,531
  6. Step 6: Final answer
    x = 151,482.38

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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.