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Finding the Fourth Proportional to 624,089.10, 936,133.65 and 519,113.10

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Solution

The fourth proportional to 624,089.10, 936,133.65 and 519,113.10 is: 778,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,089.10 : 936,133.65 = 519,113.10 : x
  2. Step 2: Convert to fraction form
    624,089.10/936,133.65 = 519,113.10/x
  3. Step 3: Cross multiply
    624,089.10x = 936,133.65 × 519,113.10
  4. Step 4: Simplify right side
    624,089.10x = 485,959,241,065.82
  5. Step 5: Solve for x
    x = 485,959,241,065.82/624,089.10
  6. Step 6: Final answer
    x = 778,669.65

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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.