Home / 651,056.20-975,029.10-399,113.80

Finding the Fourth Proportional to 651,056.20, 975,029.10 and 399,113.80

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Solution

The fourth proportional to 651,056.20, 975,029.10 and 399,113.80 is: 597,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,056.20 : 975,029.10 = 399,113.80 : x
  2. Step 2: Convert to fraction form
    651,056.20/975,029.10 = 399,113.80/x
  3. Step 3: Cross multiply
    651,056.20x = 975,029.10 × 399,113.80
  4. Step 4: Simplify right side
    651,056.20x = 389,147,569,211.58
  5. Step 5: Solve for x
    x = 389,147,569,211.58/651,056.20
  6. Step 6: Final answer
    x = 597,717.32

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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.