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Finding the Fourth Proportional to 265,792,894.40, 398,689,341.60 and 262,209,713.60

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Solution

The fourth proportional to 265,792,894.40, 398,689,341.60 and 262,209,713.60 is: 393,314,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,792,894.40 : 398,689,341.60 = 262,209,713.60 : x
  2. Step 2: Convert to fraction form
    265,792,894.40/398,689,341.60 = 262,209,713.60/x
  3. Step 3: Cross multiply
    265,792,894.40x = 398,689,341.60 × 262,209,713.60
  4. Step 4: Simplify right side
    265,792,894.40x = 104,540,218,076,308,576
  5. Step 5: Solve for x
    x = 104,540,218,076,308,576/265,792,894.40
  6. Step 6: Final answer
    x = 393,314,570.40

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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.