Home / 705,587.34-973,789.95-399,684.54

Finding the Fourth Proportional to 705,587.34, 973,789.95 and 399,684.54

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Solution

The fourth proportional to 705,587.34, 973,789.95 and 399,684.54 is: 551,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,587.34 : 973,789.95 = 399,684.54 : x
  2. Step 2: Convert to fraction form
    705,587.34/973,789.95 = 399,684.54/x
  3. Step 3: Cross multiply
    705,587.34x = 973,789.95 × 399,684.54
  4. Step 4: Simplify right side
    705,587.34x = 389,208,788,222.37
  5. Step 5: Solve for x
    x = 389,208,788,222.37/705,587.34
  6. Step 6: Final answer
    x = 551,609.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.