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Finding the Fourth Proportional to 303,441.90, 455,454.45 and 153,851.10

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Solution

The fourth proportional to 303,441.90, 455,454.45 and 153,851.10 is: 230,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,441.90 : 455,454.45 = 153,851.10 : x
  2. Step 2: Convert to fraction form
    303,441.90/455,454.45 = 153,851.10/x
  3. Step 3: Cross multiply
    303,441.90x = 455,454.45 × 153,851.10
  4. Step 4: Simplify right side
    303,441.90x = 70,072,168,132.40
  5. Step 5: Solve for x
    x = 70,072,168,132.40/303,441.90
  6. Step 6: Final answer
    x = 230,924.50

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Double scale
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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.