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Finding the Fourth Proportional to 523,860.93, 781,206.58 and 519,072.21

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Solution

The fourth proportional to 523,860.93, 781,206.58 and 519,072.21 is: 774,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,860.93 : 781,206.58 = 519,072.21 : x
  2. Step 2: Convert to fraction form
    523,860.93/781,206.58 = 519,072.21/x
  3. Step 3: Cross multiply
    523,860.93x = 781,206.58 × 519,072.21
  4. Step 4: Simplify right side
    523,860.93x = 405,502,626,595.98
  5. Step 5: Solve for x
    x = 405,502,626,595.98/523,860.93
  6. Step 6: Final answer
    x = 774,065.41

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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.