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Finding the Fourth Proportional to 475,617.60, 713,426.40 and 194,990.40

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Solution

The fourth proportional to 475,617.60, 713,426.40 and 194,990.40 is: 292,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,617.60 : 713,426.40 = 194,990.40 : x
  2. Step 2: Convert to fraction form
    475,617.60/713,426.40 = 194,990.40/x
  3. Step 3: Cross multiply
    475,617.60x = 713,426.40 × 194,990.40
  4. Step 4: Simplify right side
    475,617.60x = 139,111,299,106.56
  5. Step 5: Solve for x
    x = 139,111,299,106.56/475,617.60
  6. Step 6: Final answer
    x = 292,485.60

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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.