Home / 864,000.40-1,296,000.60-651,110.80

Finding the Fourth Proportional to 864,000.40, 1,296,000.60 and 651,110.80

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Solution

The fourth proportional to 864,000.40, 1,296,000.60 and 651,110.80 is: 976,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,000.40 : 1,296,000.60 = 651,110.80 : x
  2. Step 2: Convert to fraction form
    864,000.40/1,296,000.60 = 651,110.80/x
  3. Step 3: Cross multiply
    864,000.40x = 1,296,000.60 × 651,110.80
  4. Step 4: Simplify right side
    864,000.40x = 843,839,987,466.48
  5. Step 5: Solve for x
    x = 843,839,987,466.48/864,000.40
  6. Step 6: Final answer
    x = 976,666.20

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1.5x scale

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.