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Finding the Fourth Proportional to 690,888.96, 953,136.72 and 449,094.24

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Solution

The fourth proportional to 690,888.96, 953,136.72 and 449,094.24 is: 619,561.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,888.96 : 953,136.72 = 449,094.24 : x
  2. Step 2: Convert to fraction form
    690,888.96/953,136.72 = 449,094.24/x
  3. Step 3: Cross multiply
    690,888.96x = 953,136.72 × 449,094.24
  4. Step 4: Simplify right side
    690,888.96x = 428,048,210,884.49
  5. Step 5: Solve for x
    x = 428,048,210,884.49/690,888.96
  6. Step 6: Final answer
    x = 619,561.52

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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.