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Finding the Fourth Proportional to 841,537.68, 1,161,165.68 and 478,940

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Solution

The fourth proportional to 841,537.68, 1,161,165.68 and 478,940 is: 660,848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,537.68 : 1,161,165.68 = 478,940 : x
  2. Step 2: Convert to fraction form
    841,537.68/1,161,165.68 = 478,940/x
  3. Step 3: Cross multiply
    841,537.68x = 1,161,165.68 × 478,940
  4. Step 4: Simplify right side
    841,537.68x = 556,128,690,779.20
  5. Step 5: Solve for x
    x = 556,128,690,779.20/841,537.68
  6. Step 6: Final answer
    x = 660,848.24

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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.