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Finding the Fourth Proportional to 617,637.30, 926,499.15 and 243,611.70

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Solution

The fourth proportional to 617,637.30, 926,499.15 and 243,611.70 is: 365,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,637.30 : 926,499.15 = 243,611.70 : x
  2. Step 2: Convert to fraction form
    617,637.30/926,499.15 = 243,611.70/x
  3. Step 3: Cross multiply
    617,637.30x = 926,499.15 × 243,611.70
  4. Step 4: Simplify right side
    617,637.30x = 225,706,032,980.06
  5. Step 5: Solve for x
    x = 225,706,032,980.06/617,637.30
  6. Step 6: Final answer
    x = 365,434.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.