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Finding the Fourth Proportional to 699,705.92, 966,058.98 and 538,276.16

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Solution

The fourth proportional to 699,705.92, 966,058.98 and 538,276.16 is: 743,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,705.92 : 966,058.98 = 538,276.16 : x
  2. Step 2: Convert to fraction form
    699,705.92/966,058.98 = 538,276.16/x
  3. Step 3: Cross multiply
    699,705.92x = 966,058.98 × 538,276.16
  4. Step 4: Simplify right side
    699,705.92x = 520,006,518,087.92
  5. Step 5: Solve for x
    x = 520,006,518,087.92/699,705.92
  6. Step 6: Final answer
    x = 743,178.67

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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.