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Finding the Fourth Proportional to 562,465,125.60, 843,697,688.40 and 505,211,215.20

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Solution

The fourth proportional to 562,465,125.60, 843,697,688.40 and 505,211,215.20 is: 757,816,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,465,125.60 : 843,697,688.40 = 505,211,215.20 : x
  2. Step 2: Convert to fraction form
    562,465,125.60/843,697,688.40 = 505,211,215.20/x
  3. Step 3: Cross multiply
    562,465,125.60x = 843,697,688.40 × 505,211,215.20
  4. Step 4: Simplify right side
    562,465,125.60x = 426,245,534,417,994,944
  5. Step 5: Solve for x
    x = 426,245,534,417,994,944/562,465,125.60
  6. Step 6: Final answer
    x = 757,816,822.80

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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.