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Finding the Fourth Proportional to 623,808,164.97, 860,849,378.51 and 359,393,041.53

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Solution

The fourth proportional to 623,808,164.97, 860,849,378.51 and 359,393,041.53 is: 495,959,004.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,808,164.97 : 860,849,378.51 = 359,393,041.53 : x
  2. Step 2: Convert to fraction form
    623,808,164.97/860,849,378.51 = 359,393,041.53/x
  3. Step 3: Cross multiply
    623,808,164.97x = 860,849,378.51 × 359,393,041.53
  4. Step 4: Simplify right side
    623,808,164.97x = 309,383,276,440,122,112
  5. Step 5: Solve for x
    x = 309,383,276,440,122,112/623,808,164.97
  6. Step 6: Final answer
    x = 495,959,004.41

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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.