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Finding the Fourth Proportional to 569,830.80, 854,746.20 and 436,970.55

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Solution

The fourth proportional to 569,830.80, 854,746.20 and 436,970.55 is: 655,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,830.80 : 854,746.20 = 436,970.55 : x
  2. Step 2: Convert to fraction form
    569,830.80/854,746.20 = 436,970.55/x
  3. Step 3: Cross multiply
    569,830.80x = 854,746.20 × 436,970.55
  4. Step 4: Simplify right side
    569,830.80x = 373,498,917,124.41
  5. Step 5: Solve for x
    x = 373,498,917,124.41/569,830.80
  6. Step 6: Final answer
    x = 655,455.83

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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.