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Finding the Fourth Proportional to 621,663.06, 857,896.34 and 367,030.65

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Solution

The fourth proportional to 621,663.06, 857,896.34 and 367,030.65 is: 506,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,663.06 : 857,896.34 = 367,030.65 : x
  2. Step 2: Convert to fraction form
    621,663.06/857,896.34 = 367,030.65/x
  3. Step 3: Cross multiply
    621,663.06x = 857,896.34 × 367,030.65
  4. Step 4: Simplify right side
    621,663.06x = 314,874,249,467.67
  5. Step 5: Solve for x
    x = 314,874,249,467.67/621,663.06
  6. Step 6: Final answer
    x = 506,503.07

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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.