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Finding the Fourth Proportional to 619,347.16, 854,877.27 and 401,547.88

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Solution

The fourth proportional to 619,347.16, 854,877.27 and 401,547.88 is: 554,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,347.16 : 854,877.27 = 401,547.88 : x
  2. Step 2: Convert to fraction form
    619,347.16/854,877.27 = 401,547.88/x
  3. Step 3: Cross multiply
    619,347.16x = 854,877.27 × 401,547.88
  4. Step 4: Simplify right side
    619,347.16x = 343,274,155,428.69
  5. Step 5: Solve for x
    x = 343,274,155,428.69/619,347.16
  6. Step 6: Final answer
    x = 554,251.60

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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.