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Finding the Fourth Proportional to 842,507,393.20, 1,262,060,478.60 and 842,507,393.20

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Solution

The fourth proportional to 842,507,393.20, 1,262,060,478.60 and 842,507,393.20 is: 1,262,060,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,507,393.20 : 1,262,060,478.60 = 842,507,393.20 : x
  2. Step 2: Convert to fraction form
    842,507,393.20/1,262,060,478.60 = 842,507,393.20/x
  3. Step 3: Cross multiply
    842,507,393.20x = 1,262,060,478.60 × 842,507,393.20
  4. Step 4: Simplify right side
    842,507,393.20x = 1,063,295,283,886,030,336
  5. Step 5: Solve for x
    x = 1,063,295,283,886,030,336/842,507,393.20
  6. Step 6: Final answer
    x = 1,262,060,478.60

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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.