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Finding the Fourth Proportional to 295,431.40, 442,628.70 and 242,554.60

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Solution

The fourth proportional to 295,431.40, 442,628.70 and 242,554.60 is: 363,406.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,431.40 : 442,628.70 = 242,554.60 : x
  2. Step 2: Convert to fraction form
    295,431.40/442,628.70 = 242,554.60/x
  3. Step 3: Cross multiply
    295,431.40x = 442,628.70 × 242,554.60
  4. Step 4: Simplify right side
    295,431.40x = 107,361,627,277.02
  5. Step 5: Solve for x
    x = 107,361,627,277.02/295,431.40
  6. Step 6: Final answer
    x = 363,406.28

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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.