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Finding the Fourth Proportional to 535,735.70, 803,603.55 and 417,495.50

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Solution

The fourth proportional to 535,735.70, 803,603.55 and 417,495.50 is: 626,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,735.70 : 803,603.55 = 417,495.50 : x
  2. Step 2: Convert to fraction form
    535,735.70/803,603.55 = 417,495.50/x
  3. Step 3: Cross multiply
    535,735.70x = 803,603.55 × 417,495.50
  4. Step 4: Simplify right side
    535,735.70x = 335,500,865,909.03
  5. Step 5: Solve for x
    x = 335,500,865,909.03/535,735.70
  6. Step 6: Final answer
    x = 626,243.25

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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.