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Finding the Fourth Proportional to 402,012,374.40, 601,743,103.20 and 402,012,374.40

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Solution

The fourth proportional to 402,012,374.40, 601,743,103.20 and 402,012,374.40 is: 601,743,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,012,374.40 : 601,743,103.20 = 402,012,374.40 : x
  2. Step 2: Convert to fraction form
    402,012,374.40/601,743,103.20 = 402,012,374.40/x
  3. Step 3: Cross multiply
    402,012,374.40x = 601,743,103.20 × 402,012,374.40
  4. Step 4: Simplify right side
    402,012,374.40x = 241,908,173,696,256,256
  5. Step 5: Solve for x
    x = 241,908,173,696,256,256/402,012,374.40
  6. Step 6: Final answer
    x = 601,743,103.20

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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.