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Finding the Fourth Proportional to 573,184.11, 789,626.95 and 400,779.47

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Solution

The fourth proportional to 573,184.11, 789,626.95 and 400,779.47 is: 552,119.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,184.11 : 789,626.95 = 400,779.47 : x
  2. Step 2: Convert to fraction form
    573,184.11/789,626.95 = 400,779.47/x
  3. Step 3: Cross multiply
    573,184.11x = 789,626.95 × 400,779.47
  4. Step 4: Simplify right side
    573,184.11x = 316,466,270,518.72
  5. Step 5: Solve for x
    x = 316,466,270,518.72/573,184.11
  6. Step 6: Final answer
    x = 552,119.76

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1.5x scale

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.