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Finding the Fourth Proportional to 617,895.30, 862,953.90 and 617,895.30

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Solution

The fourth proportional to 617,895.30, 862,953.90 and 617,895.30 is: 862,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,895.30 : 862,953.90 = 617,895.30 : x
  2. Step 2: Convert to fraction form
    617,895.30/862,953.90 = 617,895.30/x
  3. Step 3: Cross multiply
    617,895.30x = 862,953.90 × 617,895.30
  4. Step 4: Simplify right side
    617,895.30x = 533,215,158,926.67
  5. Step 5: Solve for x
    x = 533,215,158,926.67/617,895.30
  6. Step 6: Final answer
    x = 862,953.90

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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.