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Finding the Fourth Proportional to 623,792.72, 860,054.04 and 520,575.68

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Solution

The fourth proportional to 623,792.72, 860,054.04 and 520,575.68 is: 717,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,792.72 : 860,054.04 = 520,575.68 : x
  2. Step 2: Convert to fraction form
    623,792.72/860,054.04 = 520,575.68/x
  3. Step 3: Cross multiply
    623,792.72x = 860,054.04 × 520,575.68
  4. Step 4: Simplify right side
    623,792.72x = 447,723,216,709.75
  5. Step 5: Solve for x
    x = 447,723,216,709.75/623,792.72
  6. Step 6: Final answer
    x = 717,743.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.