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Finding the Fourth Proportional to 584,147.40, 876,221.10 and 304,211.40

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Solution

The fourth proportional to 584,147.40, 876,221.10 and 304,211.40 is: 456,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,147.40 : 876,221.10 = 304,211.40 : x
  2. Step 2: Convert to fraction form
    584,147.40/876,221.10 = 304,211.40/x
  3. Step 3: Cross multiply
    584,147.40x = 876,221.10 × 304,211.40
  4. Step 4: Simplify right side
    584,147.40x = 266,556,447,540.54
  5. Step 5: Solve for x
    x = 266,556,447,540.54/584,147.40
  6. Step 6: Final answer
    x = 456,317.10

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Half scale
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Double scale
Find fourth proportional to 584,148.40, 876,222.60 and 304,212.40
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.