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Finding the Fourth Proportional to 355,423.19, 532,675.51 and 265,974.89

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Solution

The fourth proportional to 355,423.19, 532,675.51 and 265,974.89 is: 398,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,423.19 : 532,675.51 = 265,974.89 : x
  2. Step 2: Convert to fraction form
    355,423.19/532,675.51 = 265,974.89/x
  3. Step 3: Cross multiply
    355,423.19x = 532,675.51 × 265,974.89
  4. Step 4: Simplify right side
    355,423.19x = 141,678,306,849.63
  5. Step 5: Solve for x
    x = 141,678,306,849.63/355,423.19
  6. Step 6: Final answer
    x = 398,618.64

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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.