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Finding the Fourth Proportional to 553,558.70, 829,819.65 and 433,549.10

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Solution

The fourth proportional to 553,558.70, 829,819.65 and 433,549.10 is: 649,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,558.70 : 829,819.65 = 433,549.10 : x
  2. Step 2: Convert to fraction form
    553,558.70/829,819.65 = 433,549.10/x
  3. Step 3: Cross multiply
    553,558.70x = 829,819.65 × 433,549.10
  4. Step 4: Simplify right side
    553,558.70x = 359,767,562,419.82
  5. Step 5: Solve for x
    x = 359,767,562,419.82/553,558.70
  6. Step 6: Final answer
    x = 649,917.64

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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.