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Finding the Fourth Proportional to 788,830,374.60, 1,180,978,080.30 and 482,720,358.60

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Solution

The fourth proportional to 788,830,374.60, 1,180,978,080.30 and 482,720,358.60 is: 722,692,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,830,374.60 : 1,180,978,080.30 = 482,720,358.60 : x
  2. Step 2: Convert to fraction form
    788,830,374.60/1,180,978,080.30 = 482,720,358.60/x
  3. Step 3: Cross multiply
    788,830,374.60x = 1,180,978,080.30 × 482,720,358.60
  4. Step 4: Simplify right side
    788,830,374.60x = 570,082,162,421,155,584
  5. Step 5: Solve for x
    x = 570,082,162,421,155,584/788,830,374.60
  6. Step 6: Final answer
    x = 722,692,965.15

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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.