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Finding the Fourth Proportional to 584,453.80, 876,680.70 and 210,428.20

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Solution

The fourth proportional to 584,453.80, 876,680.70 and 210,428.20 is: 315,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,453.80 : 876,680.70 = 210,428.20 : x
  2. Step 2: Convert to fraction form
    584,453.80/876,680.70 = 210,428.20/x
  3. Step 3: Cross multiply
    584,453.80x = 876,680.70 × 210,428.20
  4. Step 4: Simplify right side
    584,453.80x = 184,478,341,675.74
  5. Step 5: Solve for x
    x = 184,478,341,675.74/584,453.80
  6. Step 6: Final answer
    x = 315,642.30

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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.