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Finding the Fourth Proportional to 624,090.10, 936,135.15 and 519,114.10

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Solution

The fourth proportional to 624,090.10, 936,135.15 and 519,114.10 is: 778,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,090.10 : 936,135.15 = 519,114.10 : x
  2. Step 2: Convert to fraction form
    624,090.10/936,135.15 = 519,114.10/x
  3. Step 3: Cross multiply
    624,090.10x = 936,135.15 × 519,114.10
  4. Step 4: Simplify right side
    624,090.10x = 485,960,955,870.62
  5. Step 5: Solve for x
    x = 485,960,955,870.62/624,090.10
  6. Step 6: Final answer
    x = 778,671.15

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Double scale
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Similar ratio
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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.