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Finding the Fourth Proportional to 660,764.40, 926,936.40 and 660,764.40

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Solution

The fourth proportional to 660,764.40, 926,936.40 and 660,764.40 is: 926,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,764.40 : 926,936.40 = 660,764.40 : x
  2. Step 2: Convert to fraction form
    660,764.40/926,936.40 = 660,764.40/x
  3. Step 3: Cross multiply
    660,764.40x = 926,936.40 × 660,764.40
  4. Step 4: Simplify right side
    660,764.40x = 612,486,574,184.16
  5. Step 5: Solve for x
    x = 612,486,574,184.16/660,764.40
  6. Step 6: Final answer
    x = 926,936.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.