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Finding the Fourth Proportional to 540,762.12, 746,221.14 and 299,030.04

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Solution

The fourth proportional to 540,762.12, 746,221.14 and 299,030.04 is: 412,644.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,762.12 : 746,221.14 = 299,030.04 : x
  2. Step 2: Convert to fraction form
    540,762.12/746,221.14 = 299,030.04/x
  3. Step 3: Cross multiply
    540,762.12x = 746,221.14 × 299,030.04
  4. Step 4: Simplify right side
    540,762.12x = 223,142,537,343.05
  5. Step 5: Solve for x
    x = 223,142,537,343.05/540,762.12
  6. Step 6: Final answer
    x = 412,644.54

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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.