Home / 712,539.64-983,285.34-406,610.44

Finding the Fourth Proportional to 712,539.64, 983,285.34 and 406,610.44

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Solution

The fourth proportional to 712,539.64, 983,285.34 and 406,610.44 is: 561,111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,539.64 : 983,285.34 = 406,610.44 : x
  2. Step 2: Convert to fraction form
    712,539.64/983,285.34 = 406,610.44/x
  3. Step 3: Cross multiply
    712,539.64x = 983,285.34 × 406,610.44
  4. Step 4: Simplify right side
    712,539.64x = 399,814,084,742.95
  5. Step 5: Solve for x
    x = 399,814,084,742.95/712,539.64
  6. Step 6: Final answer
    x = 561,111.36

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Double scale
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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.