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Finding the Fourth Proportional to 660,598.81, 911,570.70 and 366,256.39

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Solution

The fourth proportional to 660,598.81, 911,570.70 and 366,256.39 is: 505,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,598.81 : 911,570.70 = 366,256.39 : x
  2. Step 2: Convert to fraction form
    660,598.81/911,570.70 = 366,256.39/x
  3. Step 3: Cross multiply
    660,598.81x = 911,570.70 × 366,256.39
  4. Step 4: Simplify right side
    660,598.81x = 333,868,593,811.77
  5. Step 5: Solve for x
    x = 333,868,593,811.77/660,598.81
  6. Step 6: Final answer
    x = 505,402.96

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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.