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Finding the Fourth Proportional to 536,430.60, 805,164.30 and 270,491.40

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Solution

The fourth proportional to 536,430.60, 805,164.30 and 270,491.40 is: 405,998.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,430.60 : 805,164.30 = 270,491.40 : x
  2. Step 2: Convert to fraction form
    536,430.60/805,164.30 = 270,491.40/x
  3. Step 3: Cross multiply
    536,430.60x = 805,164.30 × 270,491.40
  4. Step 4: Simplify right side
    536,430.60x = 217,790,018,737.02
  5. Step 5: Solve for x
    x = 217,790,018,737.02/536,430.60
  6. Step 6: Final answer
    x = 405,998.50

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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.