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Finding the Fourth Proportional to 624,159.60, 936,239.40 and 519,097.20

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Solution

The fourth proportional to 624,159.60, 936,239.40 and 519,097.20 is: 778,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,159.60 : 936,239.40 = 519,097.20 : x
  2. Step 2: Convert to fraction form
    624,159.60/936,239.40 = 519,097.20/x
  3. Step 3: Cross multiply
    624,159.60x = 936,239.40 × 519,097.20
  4. Step 4: Simplify right side
    624,159.60x = 485,999,251,069.68
  5. Step 5: Solve for x
    x = 485,999,251,069.68/624,159.60
  6. Step 6: Final answer
    x = 778,645.80

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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.