Home / 712,564.84-983,355.39-406,635.13

Finding the Fourth Proportional to 712,564.84, 983,355.39 and 406,635.13

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Solution

The fourth proportional to 712,564.84, 983,355.39 and 406,635.13 is: 561,165.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,564.84 : 983,355.39 = 406,635.13 : x
  2. Step 2: Convert to fraction form
    712,564.84/983,355.39 = 406,635.13/x
  3. Step 3: Cross multiply
    712,564.84x = 983,355.39 × 406,635.13
  4. Step 4: Simplify right side
    712,564.84x = 399,866,841,932.07
  5. Step 5: Solve for x
    x = 399,866,841,932.07/712,564.84
  6. Step 6: Final answer
    x = 561,165.56

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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.