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Finding the Fourth Proportional to 532,762.80, 800,893.80 and 455,780.40

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Solution

The fourth proportional to 532,762.80, 800,893.80 and 455,780.40 is: 685,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,762.80 : 800,893.80 = 455,780.40 : x
  2. Step 2: Convert to fraction form
    532,762.80/800,893.80 = 455,780.40/x
  3. Step 3: Cross multiply
    532,762.80x = 800,893.80 × 455,780.40
  4. Step 4: Simplify right side
    532,762.80x = 365,031,696,521.52
  5. Step 5: Solve for x
    x = 365,031,696,521.52/532,762.80
  6. Step 6: Final answer
    x = 685,167.39

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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.