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Finding the Fourth Proportional to 546,084.10, 818,907.45 and 190,915.30

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Solution

The fourth proportional to 546,084.10, 818,907.45 and 190,915.30 is: 286,296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,084.10 : 818,907.45 = 190,915.30 : x
  2. Step 2: Convert to fraction form
    546,084.10/818,907.45 = 190,915.30/x
  3. Step 3: Cross multiply
    546,084.10x = 818,907.45 × 190,915.30
  4. Step 4: Simplify right side
    546,084.10x = 156,341,961,488.99
  5. Step 5: Solve for x
    x = 156,341,961,488.99/546,084.10
  6. Step 6: Final answer
    x = 286,296.49

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Similar ratio
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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.