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Finding the Fourth Proportional to 492,070.90, 738,106.35 and 487,923.70

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Solution

The fourth proportional to 492,070.90, 738,106.35 and 487,923.70 is: 731,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,070.90 : 738,106.35 = 487,923.70 : x
  2. Step 2: Convert to fraction form
    492,070.90/738,106.35 = 487,923.70/x
  3. Step 3: Cross multiply
    492,070.90x = 738,106.35 × 487,923.70
  4. Step 4: Simplify right side
    492,070.90x = 360,139,581,285.50
  5. Step 5: Solve for x
    x = 360,139,581,285.50/492,070.90
  6. Step 6: Final answer
    x = 731,885.55

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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.