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Finding the Fourth Proportional to 584,420.40, 876,630.60 and 372,913.20

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Solution

The fourth proportional to 584,420.40, 876,630.60 and 372,913.20 is: 559,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,420.40 : 876,630.60 = 372,913.20 : x
  2. Step 2: Convert to fraction form
    584,420.40/876,630.60 = 372,913.20/x
  3. Step 3: Cross multiply
    584,420.40x = 876,630.60 × 372,913.20
  4. Step 4: Simplify right side
    584,420.40x = 326,907,122,263.92
  5. Step 5: Solve for x
    x = 326,907,122,263.92/584,420.40
  6. Step 6: Final answer
    x = 559,369.80

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Half scale
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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.