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Finding the Fourth Proportional to 626,545.59, 864,609.75 and 340,059.53

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Solution

The fourth proportional to 626,545.59, 864,609.75 and 340,059.53 is: 469,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,545.59 : 864,609.75 = 340,059.53 : x
  2. Step 2: Convert to fraction form
    626,545.59/864,609.75 = 340,059.53/x
  3. Step 3: Cross multiply
    626,545.59x = 864,609.75 × 340,059.53
  4. Step 4: Simplify right side
    626,545.59x = 294,018,780,895.37
  5. Step 5: Solve for x
    x = 294,018,780,895.37/626,545.59
  6. Step 6: Final answer
    x = 469,269.57

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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.