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Finding the Fourth Proportional to 924,379,140.07, 1,274,899,400.94 and 812,631,048.40

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Solution

The fourth proportional to 924,379,140.07, 1,274,899,400.94 and 812,631,048.40 is: 1,120,776,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,379,140.07 : 1,274,899,400.94 = 812,631,048.40 : x
  2. Step 2: Convert to fraction form
    924,379,140.07/1,274,899,400.94 = 812,631,048.40/x
  3. Step 3: Cross multiply
    924,379,140.07x = 1,274,899,400.94 × 812,631,048.40
  4. Step 4: Simplify right side
    924,379,140.07x = 1,036,022,836,790,404,224
  5. Step 5: Solve for x
    x = 1,036,022,836,790,404,224/924,379,140.07
  6. Step 6: Final answer
    x = 1,120,776,953.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.