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Finding the Fourth Proportional to 485,330,528.40, 727,995,792.60 and 485,330,528.40

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Solution

The fourth proportional to 485,330,528.40, 727,995,792.60 and 485,330,528.40 is: 727,995,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,330,528.40 : 727,995,792.60 = 485,330,528.40 : x
  2. Step 2: Convert to fraction form
    485,330,528.40/727,995,792.60 = 485,330,528.40/x
  3. Step 3: Cross multiply
    485,330,528.40x = 727,995,792.60 × 485,330,528.40
  4. Step 4: Simplify right side
    485,330,528.40x = 353,318,582,695,534,784
  5. Step 5: Solve for x
    x = 353,318,582,695,534,784/485,330,528.40
  6. Step 6: Final answer
    x = 727,995,792.60

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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.