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Finding the Fourth Proportional to 606,410.80, 909,616.20 and 576,886.30

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Solution

The fourth proportional to 606,410.80, 909,616.20 and 576,886.30 is: 865,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,410.80 : 909,616.20 = 576,886.30 : x
  2. Step 2: Convert to fraction form
    606,410.80/909,616.20 = 576,886.30/x
  3. Step 3: Cross multiply
    606,410.80x = 909,616.20 × 576,886.30
  4. Step 4: Simplify right side
    606,410.80x = 524,745,124,038.06
  5. Step 5: Solve for x
    x = 524,745,124,038.06/606,410.80
  6. Step 6: Final answer
    x = 865,329.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.