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Finding the Fourth Proportional to 669,681.76, 924,403.44 and 443,400.16

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Solution

The fourth proportional to 669,681.76, 924,403.44 and 443,400.16 is: 612,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,681.76 : 924,403.44 = 443,400.16 : x
  2. Step 2: Convert to fraction form
    669,681.76/924,403.44 = 443,400.16/x
  3. Step 3: Cross multiply
    669,681.76x = 924,403.44 × 443,400.16
  4. Step 4: Simplify right side
    669,681.76x = 409,880,633,200.55
  5. Step 5: Solve for x
    x = 409,880,633,200.55/669,681.76
  6. Step 6: Final answer
    x = 612,052.86

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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.