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Finding the Fourth Proportional to 611,700.45, 858,152.10 and 611,700.45

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Solution

The fourth proportional to 611,700.45, 858,152.10 and 611,700.45 is: 858,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,700.45 : 858,152.10 = 611,700.45 : x
  2. Step 2: Convert to fraction form
    611,700.45/858,152.10 = 611,700.45/x
  3. Step 3: Cross multiply
    611,700.45x = 858,152.10 × 611,700.45
  4. Step 4: Simplify right side
    611,700.45x = 524,932,025,738.45
  5. Step 5: Solve for x
    x = 524,932,025,738.45/611,700.45
  6. Step 6: Final answer
    x = 858,152.10

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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.