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Finding the Fourth Proportional to 633,140.29, 873,700.05 and 346,605.22

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Solution

The fourth proportional to 633,140.29, 873,700.05 and 346,605.22 is: 478,296.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,140.29 : 873,700.05 = 346,605.22 : x
  2. Step 2: Convert to fraction form
    633,140.29/873,700.05 = 346,605.22/x
  3. Step 3: Cross multiply
    633,140.29x = 873,700.05 × 346,605.22
  4. Step 4: Simplify right side
    633,140.29x = 302,828,998,044.26
  5. Step 5: Solve for x
    x = 302,828,998,044.26/633,140.29
  6. Step 6: Final answer
    x = 478,296.84

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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.