Home / 712,580.06-983,376.41-406,650.35

Finding the Fourth Proportional to 712,580.06, 983,376.41 and 406,650.35

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Solution

The fourth proportional to 712,580.06, 983,376.41 and 406,650.35 is: 561,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,580.06 : 983,376.41 = 406,650.35 : x
  2. Step 2: Convert to fraction form
    712,580.06/983,376.41 = 406,650.35/x
  3. Step 3: Cross multiply
    712,580.06x = 983,376.41 × 406,650.35
  4. Step 4: Simplify right side
    712,580.06x = 399,890,361,308.24
  5. Step 5: Solve for x
    x = 399,890,361,308.24/712,580.06
  6. Step 6: Final answer
    x = 561,186.57

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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.