Home / 911,317.47-1,257,510.33-503,394.84

Finding the Fourth Proportional to 911,317.47, 1,257,510.33 and 503,394.84

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Solution

The fourth proportional to 911,317.47, 1,257,510.33 and 503,394.84 is: 694,625.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,317.47 : 1,257,510.33 = 503,394.84 : x
  2. Step 2: Convert to fraction form
    911,317.47/1,257,510.33 = 503,394.84/x
  3. Step 3: Cross multiply
    911,317.47x = 1,257,510.33 × 503,394.84
  4. Step 4: Simplify right side
    911,317.47x = 633,024,211,368.70
  5. Step 5: Solve for x
    x = 633,024,211,368.70/911,317.47
  6. Step 6: Final answer
    x = 694,625.34

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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.