Home / 1,155,930.40-1,733,895.60-407,879.20

Finding the Fourth Proportional to 1,155,930.40, 1,733,895.60 and 407,879.20

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Solution

The fourth proportional to 1,155,930.40, 1,733,895.60 and 407,879.20 is: 611,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,930.40 : 1,733,895.60 = 407,879.20 : x
  2. Step 2: Convert to fraction form
    1,155,930.40/1,733,895.60 = 407,879.20/x
  3. Step 3: Cross multiply
    1,155,930.40x = 1,733,895.60 × 407,879.20
  4. Step 4: Simplify right side
    1,155,930.40x = 707,219,950,211.52
  5. Step 5: Solve for x
    x = 707,219,950,211.52/1,155,930.40
  6. Step 6: Final answer
    x = 611,818.80

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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.