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Finding the Fourth Proportional to 586,934.20, 879,623.70 and 520,060.60

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Solution

The fourth proportional to 586,934.20, 879,623.70 and 520,060.60 is: 779,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,934.20 : 879,623.70 = 520,060.60 : x
  2. Step 2: Convert to fraction form
    586,934.20/879,623.70 = 520,060.60/x
  3. Step 3: Cross multiply
    586,934.20x = 879,623.70 × 520,060.60
  4. Step 4: Simplify right side
    586,934.20x = 457,457,629,196.22
  5. Step 5: Solve for x
    x = 457,457,629,196.22/586,934.20
  6. Step 6: Final answer
    x = 779,401.90

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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.