Home / 863,590.40-1,191,275.52-505,825.28

Finding the Fourth Proportional to 863,590.40, 1,191,275.52 and 505,825.28

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Solution

The fourth proportional to 863,590.40, 1,191,275.52 and 505,825.28 is: 697,758.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,590.40 : 1,191,275.52 = 505,825.28 : x
  2. Step 2: Convert to fraction form
    863,590.40/1,191,275.52 = 505,825.28/x
  3. Step 3: Cross multiply
    863,590.40x = 1,191,275.52 × 505,825.28
  4. Step 4: Simplify right side
    863,590.40x = 602,577,273,461.15
  5. Step 5: Solve for x
    x = 602,577,273,461.15/863,590.40
  6. Step 6: Final answer
    x = 697,758.19

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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.