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Finding the Fourth Proportional to 530,611.62, 732,239.62 and 288,893.71

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Solution

The fourth proportional to 530,611.62, 732,239.62 and 288,893.71 is: 398,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,611.62 : 732,239.62 = 288,893.71 : x
  2. Step 2: Convert to fraction form
    530,611.62/732,239.62 = 288,893.71/x
  3. Step 3: Cross multiply
    530,611.62x = 732,239.62 × 288,893.71
  4. Step 4: Simplify right side
    530,611.62x = 211,539,420,430.79
  5. Step 5: Solve for x
    x = 211,539,420,430.79/530,611.62
  6. Step 6: Final answer
    x = 398,670.92

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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.