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Finding the Fourth Proportional to 673,199.40, 928,888.26 and 401,292.63

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Solution

The fourth proportional to 673,199.40, 928,888.26 and 401,292.63 is: 553,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,199.40 : 928,888.26 = 401,292.63 : x
  2. Step 2: Convert to fraction form
    673,199.40/928,888.26 = 401,292.63/x
  3. Step 3: Cross multiply
    673,199.40x = 928,888.26 × 401,292.63
  4. Step 4: Simplify right side
    673,199.40x = 372,756,011,326.68
  5. Step 5: Solve for x
    x = 372,756,011,326.68/673,199.40
  6. Step 6: Final answer
    x = 553,708.17

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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.