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Finding the Fourth Proportional to 660,726.40, 926,883.20 and 660,726.40

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Solution

The fourth proportional to 660,726.40, 926,883.20 and 660,726.40 is: 926,883.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,726.40 : 926,883.20 = 660,726.40 : x
  2. Step 2: Convert to fraction form
    660,726.40/926,883.20 = 660,726.40/x
  3. Step 3: Cross multiply
    660,726.40x = 926,883.20 × 660,726.40
  4. Step 4: Simplify right side
    660,726.40x = 612,416,199,956.48
  5. Step 5: Solve for x
    x = 612,416,199,956.48/660,726.40
  6. Step 6: Final answer
    x = 926,883.20

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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.