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Finding the Fourth Proportional to 604,775.76, 834,583.86 and 423,421.49

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Solution

The fourth proportional to 604,775.76, 834,583.86 and 423,421.49 is: 584,316.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,775.76 : 834,583.86 = 423,421.49 : x
  2. Step 2: Convert to fraction form
    604,775.76/834,583.86 = 423,421.49/x
  3. Step 3: Cross multiply
    604,775.76x = 834,583.86 × 423,421.49
  4. Step 4: Simplify right side
    604,775.76x = 353,380,737,358.23
  5. Step 5: Solve for x
    x = 353,380,737,358.23/604,775.76
  6. Step 6: Final answer
    x = 584,316.97

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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.