Home / 985,580.09-1,360,391.40-577,770.20

Finding the Fourth Proportional to 985,580.09, 1,360,391.40 and 577,770.20

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Solution

The fourth proportional to 985,580.09, 1,360,391.40 and 577,770.20 is: 797,493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,580.09 : 1,360,391.40 = 577,770.20 : x
  2. Step 2: Convert to fraction form
    985,580.09/1,360,391.40 = 577,770.20/x
  3. Step 3: Cross multiply
    985,580.09x = 1,360,391.40 × 577,770.20
  4. Step 4: Simplify right side
    985,580.09x = 785,993,611,256.28
  5. Step 5: Solve for x
    x = 785,993,611,256.28/985,580.09
  6. Step 6: Final answer
    x = 797,493.39

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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.