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Finding the Fourth Proportional to 539,417.82, 805,025.10 and 479,632.26

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Solution

The fourth proportional to 539,417.82, 805,025.10 and 479,632.26 is: 715,801.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,417.82 : 805,025.10 = 479,632.26 : x
  2. Step 2: Convert to fraction form
    539,417.82/805,025.10 = 479,632.26/x
  3. Step 3: Cross multiply
    539,417.82x = 805,025.10 × 479,632.26
  4. Step 4: Simplify right side
    539,417.82x = 386,116,008,069.73
  5. Step 5: Solve for x
    x = 386,116,008,069.73/539,417.82
  6. Step 6: Final answer
    x = 715,801.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.