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Finding the Fourth Proportional to 519,270.80, 779,124.90 and 282,783.20

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Solution

The fourth proportional to 519,270.80, 779,124.90 and 282,783.20 is: 424,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,270.80 : 779,124.90 = 282,783.20 : x
  2. Step 2: Convert to fraction form
    519,270.80/779,124.90 = 282,783.20/x
  3. Step 3: Cross multiply
    519,270.80x = 779,124.90 × 282,783.20
  4. Step 4: Simplify right side
    519,270.80x = 220,323,432,421.68
  5. Step 5: Solve for x
    x = 220,323,432,421.68/519,270.80
  6. Step 6: Final answer
    x = 424,293.90

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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.