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Finding the Fourth Proportional to 370,421.80, 555,632.70 and 364,516.90

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Solution

The fourth proportional to 370,421.80, 555,632.70 and 364,516.90 is: 546,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,421.80 : 555,632.70 = 364,516.90 : x
  2. Step 2: Convert to fraction form
    370,421.80/555,632.70 = 364,516.90/x
  3. Step 3: Cross multiply
    370,421.80x = 555,632.70 × 364,516.90
  4. Step 4: Simplify right side
    370,421.80x = 202,537,509,342.63
  5. Step 5: Solve for x
    x = 202,537,509,342.63/370,421.80
  6. Step 6: Final answer
    x = 546,775.35

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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.