Home / 712,557.51-983,310.54-406,628.41

Finding the Fourth Proportional to 712,557.51, 983,310.54 and 406,628.41

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Solution

The fourth proportional to 712,557.51, 983,310.54 and 406,628.41 is: 561,136.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,557.51 : 983,310.54 = 406,628.41 : x
  2. Step 2: Convert to fraction form
    712,557.51/983,310.54 = 406,628.41/x
  3. Step 3: Cross multiply
    712,557.51x = 983,310.54 × 406,628.41
  4. Step 4: Simplify right side
    712,557.51x = 399,841,996,499.89
  5. Step 5: Solve for x
    x = 399,841,996,499.89/712,557.51
  6. Step 6: Final answer
    x = 561,136.46

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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.