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Finding the Fourth Proportional to 372,289.04, 558,433.65 and 260,188.22

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Solution

The fourth proportional to 372,289.04, 558,433.65 and 260,188.22 is: 390,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,289.04 : 558,433.65 = 260,188.22 : x
  2. Step 2: Convert to fraction form
    372,289.04/558,433.65 = 260,188.22/x
  3. Step 3: Cross multiply
    372,289.04x = 558,433.65 × 260,188.22
  4. Step 4: Simplify right side
    372,289.04x = 145,297,857,381.60
  5. Step 5: Solve for x
    x = 145,297,857,381.60/372,289.04
  6. Step 6: Final answer
    x = 390,282.39

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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.