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Finding the Fourth Proportional to 295,041,985.20, 442,562,977.80 and 295,041,985.20

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Solution

The fourth proportional to 295,041,985.20, 442,562,977.80 and 295,041,985.20 is: 442,562,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,041,985.20 : 442,562,977.80 = 295,041,985.20 : x
  2. Step 2: Convert to fraction form
    295,041,985.20/442,562,977.80 = 295,041,985.20/x
  3. Step 3: Cross multiply
    295,041,985.20x = 442,562,977.80 × 295,041,985.20
  4. Step 4: Simplify right side
    295,041,985.20x = 130,574,659,546,135,520
  5. Step 5: Solve for x
    x = 130,574,659,546,135,520/295,041,985.20
  6. Step 6: Final answer
    x = 442,562,977.80

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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.