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Finding the Fourth Proportional to 534,909.40, 802,364.10 and 345,952.60

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Solution

The fourth proportional to 534,909.40, 802,364.10 and 345,952.60 is: 518,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,909.40 : 802,364.10 = 345,952.60 : x
  2. Step 2: Convert to fraction form
    534,909.40/802,364.10 = 345,952.60/x
  3. Step 3: Cross multiply
    534,909.40x = 802,364.10 × 345,952.60
  4. Step 4: Simplify right side
    534,909.40x = 277,579,946,541.66
  5. Step 5: Solve for x
    x = 277,579,946,541.66/534,909.40
  6. Step 6: Final answer
    x = 518,928.90

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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.