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Finding the Fourth Proportional to 624,117.60, 936,176.40 and 519,141.60

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Solution

The fourth proportional to 624,117.60, 936,176.40 and 519,141.60 is: 778,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,117.60 : 936,176.40 = 519,141.60 : x
  2. Step 2: Convert to fraction form
    624,117.60/936,176.40 = 519,141.60/x
  3. Step 3: Cross multiply
    624,117.60x = 936,176.40 × 519,141.60
  4. Step 4: Simplify right side
    624,117.60x = 486,008,114,178.24
  5. Step 5: Solve for x
    x = 486,008,114,178.24/624,117.60
  6. Step 6: Final answer
    x = 778,712.40

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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.