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Finding the Fourth Proportional to 658,545.68, 909,107.16 and 441,128.72

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Solution

The fourth proportional to 658,545.68, 909,107.16 and 441,128.72 is: 608,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,545.68 : 909,107.16 = 441,128.72 : x
  2. Step 2: Convert to fraction form
    658,545.68/909,107.16 = 441,128.72/x
  3. Step 3: Cross multiply
    658,545.68x = 909,107.16 × 441,128.72
  4. Step 4: Simplify right side
    658,545.68x = 401,033,277,833.64
  5. Step 5: Solve for x
    x = 401,033,277,833.64/658,545.68
  6. Step 6: Final answer
    x = 608,968.05

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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.