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Finding the Fourth Proportional to 664,295.60, 996,281.40 and 190,931.60

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Solution

The fourth proportional to 664,295.60, 996,281.40 and 190,931.60 is: 286,350.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,295.60 : 996,281.40 = 190,931.60 : x
  2. Step 2: Convert to fraction form
    664,295.60/996,281.40 = 190,931.60/x
  3. Step 3: Cross multiply
    664,295.60x = 996,281.40 × 190,931.60
  4. Step 4: Simplify right side
    664,295.60x = 190,221,601,752.24
  5. Step 5: Solve for x
    x = 190,221,601,752.24/664,295.60
  6. Step 6: Final answer
    x = 286,350.84

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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.