Home / 657,236.24-906,985.56-355,430.24

Finding the Fourth Proportional to 657,236.24, 906,985.56 and 355,430.24

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Solution

The fourth proportional to 657,236.24, 906,985.56 and 355,430.24 is: 490,493.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,236.24 : 906,985.56 = 355,430.24 : x
  2. Step 2: Convert to fraction form
    657,236.24/906,985.56 = 355,430.24/x
  3. Step 3: Cross multiply
    657,236.24x = 906,985.56 × 355,430.24
  4. Step 4: Simplify right side
    657,236.24x = 322,370,095,267.33
  5. Step 5: Solve for x
    x = 322,370,095,267.33/657,236.24
  6. Step 6: Final answer
    x = 490,493.49

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Half scale
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Double scale
Find fourth proportional to 657,237.24, 906,986.94 and 355,431.24
Similar ratio
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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.