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Finding the Fourth Proportional to 617,959.60, 926,939.40 and 547,975.60

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Solution

The fourth proportional to 617,959.60, 926,939.40 and 547,975.60 is: 821,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,959.60 : 926,939.40 = 547,975.60 : x
  2. Step 2: Convert to fraction form
    617,959.60/926,939.40 = 547,975.60/x
  3. Step 3: Cross multiply
    617,959.60x = 926,939.40 × 547,975.60
  4. Step 4: Simplify right side
    617,959.60x = 507,940,173,878.64
  5. Step 5: Solve for x
    x = 507,940,173,878.64/617,959.60
  6. Step 6: Final answer
    x = 821,963.40

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Half scale
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Double scale
Find fourth proportional to 617,960.60, 926,940.90 and 547,976.60
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.