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Finding the Fourth Proportional to 438,398.93, 604,925.66 and 266,227.36

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Solution

The fourth proportional to 438,398.93, 604,925.66 and 266,227.36 is: 367,354.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,398.93 : 604,925.66 = 266,227.36 : x
  2. Step 2: Convert to fraction form
    438,398.93/604,925.66 = 266,227.36/x
  3. Step 3: Cross multiply
    438,398.93x = 604,925.66 × 266,227.36
  4. Step 4: Simplify right side
    438,398.93x = 161,047,757,102.29
  5. Step 5: Solve for x
    x = 161,047,757,102.29/438,398.93
  6. Step 6: Final answer
    x = 367,354.36

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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.