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Finding the Fourth Proportional to 660,621.35, 926,114.05 and 660,621.35

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Solution

The fourth proportional to 660,621.35, 926,114.05 and 660,621.35 is: 926,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,621.35 : 926,114.05 = 660,621.35 : x
  2. Step 2: Convert to fraction form
    660,621.35/926,114.05 = 660,621.35/x
  3. Step 3: Cross multiply
    660,621.35x = 926,114.05 × 660,621.35
  4. Step 4: Simplify right side
    660,621.35x = 611,810,713,964.97
  5. Step 5: Solve for x
    x = 611,810,713,964.97/660,621.35
  6. Step 6: Final answer
    x = 926,114.05

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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.