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Finding the Fourth Proportional to 610,967.95, 843,155.11 and 352,840.23

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Solution

The fourth proportional to 610,967.95, 843,155.11 and 352,840.23 is: 486,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,967.95 : 843,155.11 = 352,840.23 : x
  2. Step 2: Convert to fraction form
    610,967.95/843,155.11 = 352,840.23/x
  3. Step 3: Cross multiply
    610,967.95x = 843,155.11 × 352,840.23
  4. Step 4: Simplify right side
    610,967.95x = 297,499,041,173.87
  5. Step 5: Solve for x
    x = 297,499,041,173.87/610,967.95
  6. Step 6: Final answer
    x = 486,930.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.