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Finding the Fourth Proportional to 630,109,812.60, 945,164,718.90 and 630,109,812.60

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Solution

The fourth proportional to 630,109,812.60, 945,164,718.90 and 630,109,812.60 is: 945,164,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,109,812.60 : 945,164,718.90 = 630,109,812.60 : x
  2. Step 2: Convert to fraction form
    630,109,812.60/945,164,718.90 = 630,109,812.60/x
  3. Step 3: Cross multiply
    630,109,812.60x = 945,164,718.90 × 630,109,812.60
  4. Step 4: Simplify right side
    630,109,812.60x = 595,557,563,902,210,688
  5. Step 5: Solve for x
    x = 595,557,563,902,210,688/630,109,812.60
  6. Step 6: Final answer
    x = 945,164,718.90

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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.