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Finding the Fourth Proportional to 572,854.02, 790,411.28 and 346,494.66

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Solution

The fourth proportional to 572,854.02, 790,411.28 and 346,494.66 is: 478,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,854.02 : 790,411.28 = 346,494.66 : x
  2. Step 2: Convert to fraction form
    572,854.02/790,411.28 = 346,494.66/x
  3. Step 3: Cross multiply
    572,854.02x = 790,411.28 × 346,494.66
  4. Step 4: Simplify right side
    572,854.02x = 273,873,287,723.77
  5. Step 5: Solve for x
    x = 273,873,287,723.77/572,854.02
  6. Step 6: Final answer
    x = 478,085.65

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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.