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Finding the Fourth Proportional to 358,424.80, 537,928.80 and 346,760.80

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Solution

The fourth proportional to 358,424.80, 537,928.80 and 346,760.80 is: 520,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,424.80 : 537,928.80 = 346,760.80 : x
  2. Step 2: Convert to fraction form
    358,424.80/537,928.80 = 346,760.80/x
  3. Step 3: Cross multiply
    358,424.80x = 537,928.80 × 346,760.80
  4. Step 4: Simplify right side
    358,424.80x = 186,532,621,031.04
  5. Step 5: Solve for x
    x = 186,532,621,031.04/358,424.80
  6. Step 6: Final answer
    x = 520,423.31

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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.