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Finding the Fourth Proportional to 672,326.47, 927,810.52 and 370,520.47

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Solution

The fourth proportional to 672,326.47, 927,810.52 and 370,520.47 is: 511,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,326.47 : 927,810.52 = 370,520.47 : x
  2. Step 2: Convert to fraction form
    672,326.47/927,810.52 = 370,520.47/x
  3. Step 3: Cross multiply
    672,326.47x = 927,810.52 × 370,520.47
  4. Step 4: Simplify right side
    672,326.47x = 343,772,789,941.34
  5. Step 5: Solve for x
    x = 343,772,789,941.34/672,326.47
  6. Step 6: Final answer
    x = 511,318.24

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Double scale
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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.