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Finding the Fourth Proportional to 917,718.44, 1,266,537 and 555,231.32

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Solution

The fourth proportional to 917,718.44, 1,266,537 and 555,231.32 is: 766,270.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,718.44 : 1,266,537 = 555,231.32 : x
  2. Step 2: Convert to fraction form
    917,718.44/1,266,537 = 555,231.32/x
  3. Step 3: Cross multiply
    917,718.44x = 1,266,537 × 555,231.32
  4. Step 4: Simplify right side
    917,718.44x = 703,221,010,338.84
  5. Step 5: Solve for x
    x = 703,221,010,338.84/917,718.44
  6. Step 6: Final answer
    x = 766,270.98

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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.