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Finding the Fourth Proportional to 532,390.70, 735,030.78 and 338,907.62

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Solution

The fourth proportional to 532,390.70, 735,030.78 and 338,907.62 is: 467,903.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,390.70 : 735,030.78 = 338,907.62 : x
  2. Step 2: Convert to fraction form
    532,390.70/735,030.78 = 338,907.62/x
  3. Step 3: Cross multiply
    532,390.70x = 735,030.78 × 338,907.62
  4. Step 4: Simplify right side
    532,390.70x = 249,107,532,276.54
  5. Step 5: Solve for x
    x = 249,107,532,276.54/532,390.70
  6. Step 6: Final answer
    x = 467,903.61

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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.