Home / 1,038,279.30-1,557,710.55-505,817.70

Finding the Fourth Proportional to 1,038,279.30, 1,557,710.55 and 505,817.70

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Solution

The fourth proportional to 1,038,279.30, 1,557,710.55 and 505,817.70 is: 758,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,279.30 : 1,557,710.55 = 505,817.70 : x
  2. Step 2: Convert to fraction form
    1,038,279.30/1,557,710.55 = 505,817.70/x
  3. Step 3: Cross multiply
    1,038,279.30x = 1,557,710.55 × 505,817.70
  4. Step 4: Simplify right side
    1,038,279.30x = 787,917,567,666.74
  5. Step 5: Solve for x
    x = 787,917,567,666.74/1,038,279.30
  6. Step 6: Final answer
    x = 758,868.61

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1.5x scale

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.