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Finding the Fourth Proportional to 452,513.90, 624,432.76 and 261,539.66

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Solution

The fourth proportional to 452,513.90, 624,432.76 and 261,539.66 is: 360,903.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,513.90 : 624,432.76 = 261,539.66 : x
  2. Step 2: Convert to fraction form
    452,513.90/624,432.76 = 261,539.66/x
  3. Step 3: Cross multiply
    452,513.90x = 624,432.76 × 261,539.66
  4. Step 4: Simplify right side
    452,513.90x = 163,313,927,967.25
  5. Step 5: Solve for x
    x = 163,313,927,967.25/452,513.90
  6. Step 6: Final answer
    x = 360,903.68

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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.