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Finding the Fourth Proportional to 590,642.80, 885,964.20 and 587,143.60

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Solution

The fourth proportional to 590,642.80, 885,964.20 and 587,143.60 is: 880,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,642.80 : 885,964.20 = 587,143.60 : x
  2. Step 2: Convert to fraction form
    590,642.80/885,964.20 = 587,143.60/x
  3. Step 3: Cross multiply
    590,642.80x = 885,964.20 × 587,143.60
  4. Step 4: Simplify right side
    590,642.80x = 520,188,209,859.12
  5. Step 5: Solve for x
    x = 520,188,209,859.12/590,642.80
  6. Step 6: Final answer
    x = 880,715.40

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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.