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Finding the Fourth Proportional to 402,577.92, 555,465.60 and 232,781.76

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Solution

The fourth proportional to 402,577.92, 555,465.60 and 232,781.76 is: 321,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,577.92 : 555,465.60 = 232,781.76 : x
  2. Step 2: Convert to fraction form
    402,577.92/555,465.60 = 232,781.76/x
  3. Step 3: Cross multiply
    402,577.92x = 555,465.60 × 232,781.76
  4. Step 4: Simplify right side
    402,577.92x = 129,302,259,987.46
  5. Step 5: Solve for x
    x = 129,302,259,987.46/402,577.92
  6. Step 6: Final answer
    x = 321,185.67

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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.