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Finding the Fourth Proportional to 492,417.09, 679,534.52 and 266,062.59

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Solution

The fourth proportional to 492,417.09, 679,534.52 and 266,062.59 is: 367,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,417.09 : 679,534.52 = 266,062.59 : x
  2. Step 2: Convert to fraction form
    492,417.09/679,534.52 = 266,062.59/x
  3. Step 3: Cross multiply
    492,417.09x = 679,534.52 × 266,062.59
  4. Step 4: Simplify right side
    492,417.09x = 180,798,713,055.29
  5. Step 5: Solve for x
    x = 180,798,713,055.29/492,417.09
  6. Step 6: Final answer
    x = 367,165.80

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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.