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Finding the Fourth Proportional to 656,323.60, 984,193.80 and 256,831.60

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Solution

The fourth proportional to 656,323.60, 984,193.80 and 256,831.60 is: 385,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,323.60 : 984,193.80 = 256,831.60 : x
  2. Step 2: Convert to fraction form
    656,323.60/984,193.80 = 256,831.60/x
  3. Step 3: Cross multiply
    656,323.60x = 984,193.80 × 256,831.60
  4. Step 4: Simplify right side
    656,323.60x = 252,772,068,364.08
  5. Step 5: Solve for x
    x = 252,772,068,364.08/656,323.60
  6. Step 6: Final answer
    x = 385,133.29

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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.