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Finding the Fourth Proportional to 546,452.36, 819,678.54 and 147,133.50

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Solution

The fourth proportional to 546,452.36, 819,678.54 and 147,133.50 is: 220,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,452.36 : 819,678.54 = 147,133.50 : x
  2. Step 2: Convert to fraction form
    546,452.36/819,678.54 = 147,133.50/x
  3. Step 3: Cross multiply
    546,452.36x = 819,678.54 × 147,133.50
  4. Step 4: Simplify right side
    546,452.36x = 120,602,173,504.52
  5. Step 5: Solve for x
    x = 120,602,173,504.52/546,452.36
  6. Step 6: Final answer
    x = 220,700.25

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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.