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Finding the Fourth Proportional to 295,323.80, 442,985.70 and 216,008.60

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Solution

The fourth proportional to 295,323.80, 442,985.70 and 216,008.60 is: 324,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,323.80 : 442,985.70 = 216,008.60 : x
  2. Step 2: Convert to fraction form
    295,323.80/442,985.70 = 216,008.60/x
  3. Step 3: Cross multiply
    295,323.80x = 442,985.70 × 216,008.60
  4. Step 4: Simplify right side
    295,323.80x = 95,688,720,877.02
  5. Step 5: Solve for x
    x = 95,688,720,877.02/295,323.80
  6. Step 6: Final answer
    x = 324,012.90

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1.5x scale

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.