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Finding the Fourth Proportional to 579,505.95, 869,258.93 and 366,929.55

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Solution

The fourth proportional to 579,505.95, 869,258.93 and 366,929.55 is: 550,394.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,505.95 : 869,258.93 = 366,929.55 : x
  2. Step 2: Convert to fraction form
    579,505.95/869,258.93 = 366,929.55/x
  3. Step 3: Cross multiply
    579,505.95x = 869,258.93 × 366,929.55
  4. Step 4: Simplify right side
    579,505.95x = 318,956,788,018.38
  5. Step 5: Solve for x
    x = 318,956,788,018.38/579,505.95
  6. Step 6: Final answer
    x = 550,394.33

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Double scale
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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.