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Finding the Fourth Proportional to 659,284.36, 909,813.54 and 357,478.36

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Solution

The fourth proportional to 659,284.36, 909,813.54 and 357,478.36 is: 493,320.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,284.36 : 909,813.54 = 357,478.36 : x
  2. Step 2: Convert to fraction form
    659,284.36/909,813.54 = 357,478.36/x
  3. Step 3: Cross multiply
    659,284.36x = 909,813.54 × 357,478.36
  4. Step 4: Simplify right side
    659,284.36x = 325,238,652,184.99
  5. Step 5: Solve for x
    x = 325,238,652,184.99/659,284.36
  6. Step 6: Final answer
    x = 493,320.75

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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.