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Finding the Fourth Proportional to 672,317.51, 927,798.18 and 370,511.51

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Solution

The fourth proportional to 672,317.51, 927,798.18 and 370,511.51 is: 511,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,317.51 : 927,798.18 = 370,511.51 : x
  2. Step 2: Convert to fraction form
    672,317.51/927,798.18 = 370,511.51/x
  3. Step 3: Cross multiply
    672,317.51x = 927,798.18 × 370,511.51
  4. Step 4: Simplify right side
    672,317.51x = 343,759,904,647.05
  5. Step 5: Solve for x
    x = 343,759,904,647.05/672,317.51
  6. Step 6: Final answer
    x = 511,305.89

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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.