Home / 805,129.04-1,111,325.64-518,648.24

Finding the Fourth Proportional to 805,129.04, 1,111,325.64 and 518,648.24

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Solution

The fourth proportional to 805,129.04, 1,111,325.64 and 518,648.24 is: 715,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,129.04 : 1,111,325.64 = 518,648.24 : x
  2. Step 2: Convert to fraction form
    805,129.04/1,111,325.64 = 518,648.24/x
  3. Step 3: Cross multiply
    805,129.04x = 1,111,325.64 × 518,648.24
  4. Step 4: Simplify right side
    805,129.04x = 576,387,087,252.87
  5. Step 5: Solve for x
    x = 576,387,087,252.87/805,129.04
  6. Step 6: Final answer
    x = 715,894.05

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1.5x scale

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.