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Finding the Fourth Proportional to 273,428.90, 410,143.35 and 153,362.60

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Solution

The fourth proportional to 273,428.90, 410,143.35 and 153,362.60 is: 230,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,428.90 : 410,143.35 = 153,362.60 : x
  2. Step 2: Convert to fraction form
    273,428.90/410,143.35 = 153,362.60/x
  3. Step 3: Cross multiply
    273,428.90x = 410,143.35 × 153,362.60
  4. Step 4: Simplify right side
    273,428.90x = 62,900,650,528.71
  5. Step 5: Solve for x
    x = 62,900,650,528.71/273,428.90
  6. Step 6: Final answer
    x = 230,043.90

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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.