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Finding the Fourth Proportional to 934,499.80, 1,402,405.80 and 402,402.70

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Solution

The fourth proportional to 934,499.80, 1,402,405.80 and 402,402.70 is: 603,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,499.80 : 1,402,405.80 = 402,402.70 : x
  2. Step 2: Convert to fraction form
    934,499.80/1,402,405.80 = 402,402.70/x
  3. Step 3: Cross multiply
    934,499.80x = 1,402,405.80 × 402,402.70
  4. Step 4: Simplify right side
    934,499.80x = 564,331,880,415.66
  5. Step 5: Solve for x
    x = 564,331,880,415.66/934,499.80
  6. Step 6: Final answer
    x = 603,886.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.