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Finding the Fourth Proportional to 397,316.70, 595,975.05 and 370,878.30

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Solution

The fourth proportional to 397,316.70, 595,975.05 and 370,878.30 is: 556,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,316.70 : 595,975.05 = 370,878.30 : x
  2. Step 2: Convert to fraction form
    397,316.70/595,975.05 = 370,878.30/x
  3. Step 3: Cross multiply
    397,316.70x = 595,975.05 × 370,878.30
  4. Step 4: Simplify right side
    397,316.70x = 221,034,213,386.42
  5. Step 5: Solve for x
    x = 221,034,213,386.42/397,316.70
  6. Step 6: Final answer
    x = 556,317.45

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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.