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Finding the Fourth Proportional to 587,210.16, 810,406.90 and 329,130.95

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Solution

The fourth proportional to 587,210.16, 810,406.90 and 329,130.95 is: 454,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,210.16 : 810,406.90 = 329,130.95 : x
  2. Step 2: Convert to fraction form
    587,210.16/810,406.90 = 329,130.95/x
  3. Step 3: Cross multiply
    587,210.16x = 810,406.90 × 329,130.95
  4. Step 4: Simplify right side
    587,210.16x = 266,729,988,317.25
  5. Step 5: Solve for x
    x = 266,729,988,317.25/587,210.16
  6. Step 6: Final answer
    x = 454,232.59

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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.