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Finding the Fourth Proportional to 706,572.41, 975,070.40 and 396,432.18

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Solution

The fourth proportional to 706,572.41, 975,070.40 and 396,432.18 is: 547,076.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,572.41 : 975,070.40 = 396,432.18 : x
  2. Step 2: Convert to fraction form
    706,572.41/975,070.40 = 396,432.18/x
  3. Step 3: Cross multiply
    706,572.41x = 975,070.40 × 396,432.18
  4. Step 4: Simplify right side
    706,572.41x = 386,549,284,325.47
  5. Step 5: Solve for x
    x = 386,549,284,325.47/706,572.41
  6. Step 6: Final answer
    x = 547,076.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.