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Finding the Fourth Proportional to 656,295.40, 983,859.90 and 256,803.40

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Solution

The fourth proportional to 656,295.40, 983,859.90 and 256,803.40 is: 384,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,295.40 : 983,859.90 = 256,803.40 : x
  2. Step 2: Convert to fraction form
    656,295.40/983,859.90 = 256,803.40/x
  3. Step 3: Cross multiply
    656,295.40x = 983,859.90 × 256,803.40
  4. Step 4: Simplify right side
    656,295.40x = 252,658,567,443.66
  5. Step 5: Solve for x
    x = 252,658,567,443.66/656,295.40
  6. Step 6: Final answer
    x = 384,976.90

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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.