Home / 712,184.16-982,656.98-421,651.46

Finding the Fourth Proportional to 712,184.16, 982,656.98 and 421,651.46

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Solution

The fourth proportional to 712,184.16, 982,656.98 and 421,651.46 is: 581,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,184.16 : 982,656.98 = 421,651.46 : x
  2. Step 2: Convert to fraction form
    712,184.16/982,656.98 = 421,651.46/x
  3. Step 3: Cross multiply
    712,184.16x = 982,656.98 × 421,651.46
  4. Step 4: Simplify right side
    712,184.16x = 414,338,750,296.19
  5. Step 5: Solve for x
    x = 414,338,750,296.19/712,184.16
  6. Step 6: Final answer
    x = 581,785.97

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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.