Home / 1,312,391.15-1,968,861.33-554,234.79

Finding the Fourth Proportional to 1,312,391.15, 1,968,861.33 and 554,234.79

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Solution

The fourth proportional to 1,312,391.15, 1,968,861.33 and 554,234.79 is: 831,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,391.15 : 1,968,861.33 = 554,234.79 : x
  2. Step 2: Convert to fraction form
    1,312,391.15/1,968,861.33 = 554,234.79/x
  3. Step 3: Cross multiply
    1,312,391.15x = 1,968,861.33 × 554,234.79
  4. Step 4: Simplify right side
    1,312,391.15x = 1,091,211,445,771.67
  5. Step 5: Solve for x
    x = 1,091,211,445,771.67/1,312,391.15
  6. Step 6: Final answer
    x = 831,468.16

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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.