Home / 612,963.10-917,695.05-542,979.10

Finding the Fourth Proportional to 612,963.10, 917,695.05 and 542,979.10

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Solution

The fourth proportional to 612,963.10, 917,695.05 and 542,979.10 is: 812,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,963.10 : 917,695.05 = 542,979.10 : x
  2. Step 2: Convert to fraction form
    612,963.10/917,695.05 = 542,979.10/x
  3. Step 3: Cross multiply
    612,963.10x = 917,695.05 × 542,979.10
  4. Step 4: Simplify right side
    612,963.10x = 498,289,232,323.46
  5. Step 5: Solve for x
    x = 498,289,232,323.46/612,963.10
  6. Step 6: Final answer
    x = 812,918.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.