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Finding the Fourth Proportional to 624,196.40, 936,294.60 and 579,959.60

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Solution

The fourth proportional to 624,196.40, 936,294.60 and 579,959.60 is: 869,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,196.40 : 936,294.60 = 579,959.60 : x
  2. Step 2: Convert to fraction form
    624,196.40/936,294.60 = 579,959.60/x
  3. Step 3: Cross multiply
    624,196.40x = 936,294.60 × 579,959.60
  4. Step 4: Simplify right side
    624,196.40x = 543,013,041,698.16
  5. Step 5: Solve for x
    x = 543,013,041,698.16/624,196.40
  6. Step 6: Final answer
    x = 869,939.40

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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.