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Finding the Fourth Proportional to 539,950.71, 745,068.04 and 298,218.90

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Solution

The fourth proportional to 539,950.71, 745,068.04 and 298,218.90 is: 411,506.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,950.71 : 745,068.04 = 298,218.90 : x
  2. Step 2: Convert to fraction form
    539,950.71/745,068.04 = 298,218.90/x
  3. Step 3: Cross multiply
    539,950.71x = 745,068.04 × 298,218.90
  4. Step 4: Simplify right side
    539,950.71x = 222,193,371,313.96
  5. Step 5: Solve for x
    x = 222,193,371,313.96/539,950.71
  6. Step 6: Final answer
    x = 411,506.77

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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.