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Finding the Fourth Proportional to 676,989.45, 934,670.88 and 435,692.34

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Solution

The fourth proportional to 676,989.45, 934,670.88 and 435,692.34 is: 601,529.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,989.45 : 934,670.88 = 435,692.34 : x
  2. Step 2: Convert to fraction form
    676,989.45/934,670.88 = 435,692.34/x
  3. Step 3: Cross multiply
    676,989.45x = 934,670.88 × 435,692.34
  4. Step 4: Simplify right side
    676,989.45x = 407,228,942,837.06
  5. Step 5: Solve for x
    x = 407,228,942,837.06/676,989.45
  6. Step 6: Final answer
    x = 601,529.23

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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.