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Finding the Fourth Proportional to 539,901.11, 745,059.16 and 298,200.25

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Solution

The fourth proportional to 539,901.11, 745,059.16 and 298,200.25 is: 411,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,901.11 : 745,059.16 = 298,200.25 : x
  2. Step 2: Convert to fraction form
    539,901.11/745,059.16 = 298,200.25/x
  3. Step 3: Cross multiply
    539,901.11x = 745,059.16 × 298,200.25
  4. Step 4: Simplify right side
    539,901.11x = 222,176,829,080.86
  5. Step 5: Solve for x
    x = 222,176,829,080.86/539,901.11
  6. Step 6: Final answer
    x = 411,513.93

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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.