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Finding the Fourth Proportional to 553,141.30, 828,837.15 and 411,423.70

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Solution

The fourth proportional to 553,141.30, 828,837.15 and 411,423.70 is: 616,484.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,141.30 : 828,837.15 = 411,423.70 : x
  2. Step 2: Convert to fraction form
    553,141.30/828,837.15 = 411,423.70/x
  3. Step 3: Cross multiply
    553,141.30x = 828,837.15 × 411,423.70
  4. Step 4: Simplify right side
    553,141.30x = 341,003,246,950.46
  5. Step 5: Solve for x
    x = 341,003,246,950.46/553,141.30
  6. Step 6: Final answer
    x = 616,484.88

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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.