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Finding the Fourth Proportional to 832,641, 1,148,762.64 and 542,119.92

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Solution

The fourth proportional to 832,641, 1,148,762.64 and 542,119.92 is: 747,941.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,641 : 1,148,762.64 = 542,119.92 : x
  2. Step 2: Convert to fraction form
    832,641/1,148,762.64 = 542,119.92/x
  3. Step 3: Cross multiply
    832,641x = 1,148,762.64 × 542,119.92
  4. Step 4: Simplify right side
    832,641x = 622,767,110,495.79
  5. Step 5: Solve for x
    x = 622,767,110,495.79/832,641
  6. Step 6: Final answer
    x = 747,941.92

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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.