Home / 403,920,640.60-605,880,960.90-354,036,045.40

Finding the Fourth Proportional to 403,920,640.60, 605,880,960.90 and 354,036,045.40

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Solution

The fourth proportional to 403,920,640.60, 605,880,960.90 and 354,036,045.40 is: 531,054,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,920,640.60 : 605,880,960.90 = 354,036,045.40 : x
  2. Step 2: Convert to fraction form
    403,920,640.60/605,880,960.90 = 354,036,045.40/x
  3. Step 3: Cross multiply
    403,920,640.60x = 605,880,960.90 × 354,036,045.40
  4. Step 4: Simplify right side
    403,920,640.60x = 214,503,699,380,188,000
  5. Step 5: Solve for x
    x = 214,503,699,380,188,000/403,920,640.60
  6. Step 6: Final answer
    x = 531,054,068.10

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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.