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Finding the Fourth Proportional to 519,740.10, 779,610.15 and 519,740.10

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Solution

The fourth proportional to 519,740.10, 779,610.15 and 519,740.10 is: 779,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,740.10 : 779,610.15 = 519,740.10 : x
  2. Step 2: Convert to fraction form
    519,740.10/779,610.15 = 519,740.10/x
  3. Step 3: Cross multiply
    519,740.10x = 779,610.15 × 519,740.10
  4. Step 4: Simplify right side
    519,740.10x = 405,194,657,322.02
  5. Step 5: Solve for x
    x = 405,194,657,322.02/519,740.10
  6. Step 6: Final answer
    x = 779,610.15

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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.