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Finding the Fourth Proportional to 532,281.60, 734,486.40 and 317,433.60

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Solution

The fourth proportional to 532,281.60, 734,486.40 and 317,433.60 is: 438,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,281.60 : 734,486.40 = 317,433.60 : x
  2. Step 2: Convert to fraction form
    532,281.60/734,486.40 = 317,433.60/x
  3. Step 3: Cross multiply
    532,281.60x = 734,486.40 × 317,433.60
  4. Step 4: Simplify right side
    532,281.60x = 233,150,662,103.04
  5. Step 5: Solve for x
    x = 233,150,662,103.04/532,281.60
  6. Step 6: Final answer
    x = 438,021.27

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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.