Home / 660,819.66-911,133.27-558,664.89

Finding the Fourth Proportional to 660,819.66, 911,133.27 and 558,664.89

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Solution

The fourth proportional to 660,819.66, 911,133.27 and 558,664.89 is: 770,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,819.66 : 911,133.27 = 558,664.89 : x
  2. Step 2: Convert to fraction form
    660,819.66/911,133.27 = 558,664.89/x
  3. Step 3: Cross multiply
    660,819.66x = 911,133.27 × 558,664.89
  4. Step 4: Simplify right side
    660,819.66x = 509,018,168,059.89
  5. Step 5: Solve for x
    x = 509,018,168,059.89/660,819.66
  6. Step 6: Final answer
    x = 770,283.03

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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.