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Finding the Fourth Proportional to 616,363.06, 920,030.96 and 543,560.40

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Solution

The fourth proportional to 616,363.06, 920,030.96 and 543,560.40 is: 811,360.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,363.06 : 920,030.96 = 543,560.40 : x
  2. Step 2: Convert to fraction form
    616,363.06/920,030.96 = 543,560.40/x
  3. Step 3: Cross multiply
    616,363.06x = 920,030.96 × 543,560.40
  4. Step 4: Simplify right side
    616,363.06x = 500,092,389,312.03
  5. Step 5: Solve for x
    x = 500,092,389,312.03/616,363.06
  6. Step 6: Final answer
    x = 811,360.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.