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Finding the Fourth Proportional to 553,353.80, 830,030.70 and 541,689.80

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Solution

The fourth proportional to 553,353.80, 830,030.70 and 541,689.80 is: 812,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,353.80 : 830,030.70 = 541,689.80 : x
  2. Step 2: Convert to fraction form
    553,353.80/830,030.70 = 541,689.80/x
  3. Step 3: Cross multiply
    553,353.80x = 830,030.70 × 541,689.80
  4. Step 4: Simplify right side
    553,353.80x = 449,619,163,876.86
  5. Step 5: Solve for x
    x = 449,619,163,876.86/553,353.80
  6. Step 6: Final answer
    x = 812,534.70

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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.