Home / 656,078.20-983,498.10-356,116.60

Finding the Fourth Proportional to 656,078.20, 983,498.10 and 356,116.60

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Solution

The fourth proportional to 656,078.20, 983,498.10 and 356,116.60 is: 533,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,078.20 : 983,498.10 = 356,116.60 : x
  2. Step 2: Convert to fraction form
    656,078.20/983,498.10 = 356,116.60/x
  3. Step 3: Cross multiply
    656,078.20x = 983,498.10 × 356,116.60
  4. Step 4: Simplify right side
    656,078.20x = 350,239,999,478.46
  5. Step 5: Solve for x
    x = 350,239,999,478.46/656,078.20
  6. Step 6: Final answer
    x = 533,838.80

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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.