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Finding the Fourth Proportional to 673,527.60, 929,627.64 and 387,214.02

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Solution

The fourth proportional to 673,527.60, 929,627.64 and 387,214.02 is: 534,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,527.60 : 929,627.64 = 387,214.02 : x
  2. Step 2: Convert to fraction form
    673,527.60/929,627.64 = 387,214.02/x
  3. Step 3: Cross multiply
    673,527.60x = 929,627.64 × 387,214.02
  4. Step 4: Simplify right side
    673,527.60x = 359,964,855,587.51
  5. Step 5: Solve for x
    x = 359,964,855,587.51/673,527.60
  6. Step 6: Final answer
    x = 534,447.07

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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.