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Finding the Fourth Proportional to 555,120.81, 833,013.32 and 509,948.33

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Solution

The fourth proportional to 555,120.81, 833,013.32 and 509,948.33 is: 765,227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,120.81 : 833,013.32 = 509,948.33 : x
  2. Step 2: Convert to fraction form
    555,120.81/833,013.32 = 509,948.33/x
  3. Step 3: Cross multiply
    555,120.81x = 833,013.32 × 509,948.33
  4. Step 4: Simplify right side
    555,120.81x = 424,793,744,686.95
  5. Step 5: Solve for x
    x = 424,793,744,686.95/555,120.81
  6. Step 6: Final answer
    x = 765,227.56

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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.