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Finding the Fourth Proportional to 610,809.40, 842,956.82 and 352,697.23

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Solution

The fourth proportional to 610,809.40, 842,956.82 and 352,697.23 is: 486,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,809.40 : 842,956.82 = 352,697.23 : x
  2. Step 2: Convert to fraction form
    610,809.40/842,956.82 = 352,697.23/x
  3. Step 3: Cross multiply
    610,809.40x = 842,956.82 × 352,697.23
  4. Step 4: Simplify right side
    610,809.40x = 297,308,535,423.61
  5. Step 5: Solve for x
    x = 297,308,535,423.61/610,809.40
  6. Step 6: Final answer
    x = 486,745.19

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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.