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Finding the Fourth Proportional to 292,281.20, 438,421.80 and 150,563.60

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Solution

The fourth proportional to 292,281.20, 438,421.80 and 150,563.60 is: 225,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,281.20 : 438,421.80 = 150,563.60 : x
  2. Step 2: Convert to fraction form
    292,281.20/438,421.80 = 150,563.60/x
  3. Step 3: Cross multiply
    292,281.20x = 438,421.80 × 150,563.60
  4. Step 4: Simplify right side
    292,281.20x = 66,010,364,526.48
  5. Step 5: Solve for x
    x = 66,010,364,526.48/292,281.20
  6. Step 6: Final answer
    x = 225,845.40

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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.