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Finding the Fourth Proportional to 659,501.11, 910,209.36 and 417,806.11

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Solution

The fourth proportional to 659,501.11, 910,209.36 and 417,806.11 is: 576,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,501.11 : 910,209.36 = 417,806.11 : x
  2. Step 2: Convert to fraction form
    659,501.11/910,209.36 = 417,806.11/x
  3. Step 3: Cross multiply
    659,501.11x = 910,209.36 × 417,806.11
  4. Step 4: Simplify right side
    659,501.11x = 380,291,031,987.19
  5. Step 5: Solve for x
    x = 380,291,031,987.19/659,501.11
  6. Step 6: Final answer
    x = 576,634.41

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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.