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Finding the Fourth Proportional to 610,753.92, 842,841.40 and 338,821.83

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Solution

The fourth proportional to 610,753.92, 842,841.40 and 338,821.83 is: 467,574.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,753.92 : 842,841.40 = 338,821.83 : x
  2. Step 2: Convert to fraction form
    610,753.92/842,841.40 = 338,821.83/x
  3. Step 3: Cross multiply
    610,753.92x = 842,841.40 × 338,821.83
  4. Step 4: Simplify right side
    610,753.92x = 285,573,065,547.76
  5. Step 5: Solve for x
    x = 285,573,065,547.76/610,753.92
  6. Step 6: Final answer
    x = 467,574.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.