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Finding the Fourth Proportional to 553,679.70, 830,519.55 and 473,963.55

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Solution

The fourth proportional to 553,679.70, 830,519.55 and 473,963.55 is: 710,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,679.70 : 830,519.55 = 473,963.55 : x
  2. Step 2: Convert to fraction form
    553,679.70/830,519.55 = 473,963.55/x
  3. Step 3: Cross multiply
    553,679.70x = 830,519.55 × 473,963.55
  4. Step 4: Simplify right side
    553,679.70x = 393,635,994,262.40
  5. Step 5: Solve for x
    x = 393,635,994,262.40/553,679.70
  6. Step 6: Final answer
    x = 710,945.33

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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.