Home / 711,806.77-982,293.43-389,516.93

Finding the Fourth Proportional to 711,806.77, 982,293.43 and 389,516.93

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Solution

The fourth proportional to 711,806.77, 982,293.43 and 389,516.93 is: 537,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,806.77 : 982,293.43 = 389,516.93 : x
  2. Step 2: Convert to fraction form
    711,806.77/982,293.43 = 389,516.93/x
  3. Step 3: Cross multiply
    711,806.77x = 982,293.43 × 389,516.93
  4. Step 4: Simplify right side
    711,806.77x = 382,619,922,694.71
  5. Step 5: Solve for x
    x = 382,619,922,694.71/711,806.77
  6. Step 6: Final answer
    x = 537,533.42

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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.