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Finding the Fourth Proportional to 567,455.40, 850,016.70 and 390,162.60

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Solution

The fourth proportional to 567,455.40, 850,016.70 and 390,162.60 is: 584,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,455.40 : 850,016.70 = 390,162.60 : x
  2. Step 2: Convert to fraction form
    567,455.40/850,016.70 = 390,162.60/x
  3. Step 3: Cross multiply
    567,455.40x = 850,016.70 × 390,162.60
  4. Step 4: Simplify right side
    567,455.40x = 331,644,725,715.42
  5. Step 5: Solve for x
    x = 331,644,725,715.42/567,455.40
  6. Step 6: Final answer
    x = 584,441.92

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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.