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Finding the Fourth Proportional to 425,795,169.60, 638,692,754.40 and 232,303,406.40

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Solution

The fourth proportional to 425,795,169.60, 638,692,754.40 and 232,303,406.40 is: 348,455,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,795,169.60 : 638,692,754.40 = 232,303,406.40 : x
  2. Step 2: Convert to fraction form
    425,795,169.60/638,692,754.40 = 232,303,406.40/x
  3. Step 3: Cross multiply
    425,795,169.60x = 638,692,754.40 × 232,303,406.40
  4. Step 4: Simplify right side
    425,795,169.60x = 148,370,502,490,118,592
  5. Step 5: Solve for x
    x = 148,370,502,490,118,592/425,795,169.60
  6. Step 6: Final answer
    x = 348,455,109.60

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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.