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Finding the Fourth Proportional to 676,155.98, 933,120.40 and 385,814.82

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Solution

The fourth proportional to 676,155.98, 933,120.40 and 385,814.82 is: 532,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,155.98 : 933,120.40 = 385,814.82 : x
  2. Step 2: Convert to fraction form
    676,155.98/933,120.40 = 385,814.82/x
  3. Step 3: Cross multiply
    676,155.98x = 933,120.40 × 385,814.82
  4. Step 4: Simplify right side
    676,155.98x = 360,011,679,164.33
  5. Step 5: Solve for x
    x = 360,011,679,164.33/676,155.98
  6. Step 6: Final answer
    x = 532,438.80

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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.