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Finding the Fourth Proportional to 670,970.76, 926,498.36 and 622,289.17

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Solution

The fourth proportional to 670,970.76, 926,498.36 and 622,289.17 is: 859,277.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,970.76 : 926,498.36 = 622,289.17 : x
  2. Step 2: Convert to fraction form
    670,970.76/926,498.36 = 622,289.17/x
  3. Step 3: Cross multiply
    670,970.76x = 926,498.36 × 622,289.17
  4. Step 4: Simplify right side
    670,970.76x = 576,549,897,736.81
  5. Step 5: Solve for x
    x = 576,549,897,736.81/670,970.76
  6. Step 6: Final answer
    x = 859,277.23

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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.