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Finding the Fourth Proportional to 573,699,925, 860,553,036.78 and 142,878,421

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Solution

The fourth proportional to 573,699,925, 860,553,036.78 and 142,878,421 is: 214,318,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,699,925 : 860,553,036.78 = 142,878,421 : x
  2. Step 2: Convert to fraction form
    573,699,925/860,553,036.78 = 142,878,421/x
  3. Step 3: Cross multiply
    573,699,925x = 860,553,036.78 × 142,878,421
  4. Step 4: Simplify right side
    573,699,925x = 122,954,459,081,881,328
  5. Step 5: Solve for x
    x = 122,954,459,081,881,328/573,699,925
  6. Step 6: Final answer
    x = 214,318,415.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.