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Finding the Fourth Proportional to 632,930.55, 873,410.36 and 346,395.21

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Solution

The fourth proportional to 632,930.55, 873,410.36 and 346,395.21 is: 478,006.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,930.55 : 873,410.36 = 346,395.21 : x
  2. Step 2: Convert to fraction form
    632,930.55/873,410.36 = 346,395.21/x
  3. Step 3: Cross multiply
    632,930.55x = 873,410.36 × 346,395.21
  4. Step 4: Simplify right side
    632,930.55x = 302,545,163,336.40
  5. Step 5: Solve for x
    x = 302,545,163,336.40/632,930.55
  6. Step 6: Final answer
    x = 478,006.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.