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Finding the Fourth Proportional to 553,660.60, 830,490.90 and 465,087.10

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Solution

The fourth proportional to 553,660.60, 830,490.90 and 465,087.10 is: 697,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,660.60 : 830,490.90 = 465,087.10 : x
  2. Step 2: Convert to fraction form
    553,660.60/830,490.90 = 465,087.10/x
  3. Step 3: Cross multiply
    553,660.60x = 830,490.90 × 465,087.10
  4. Step 4: Simplify right side
    553,660.60x = 386,250,604,257.39
  5. Step 5: Solve for x
    x = 386,250,604,257.39/553,660.60
  6. Step 6: Final answer
    x = 697,630.65

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Similar ratio
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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.