Home / 913,567.76-1,260,691.37-505,670.39

Finding the Fourth Proportional to 913,567.76, 1,260,691.37 and 505,670.39

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Solution

The fourth proportional to 913,567.76, 1,260,691.37 and 505,670.39 is: 697,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,567.76 : 1,260,691.37 = 505,670.39 : x
  2. Step 2: Convert to fraction form
    913,567.76/1,260,691.37 = 505,670.39/x
  3. Step 3: Cross multiply
    913,567.76x = 1,260,691.37 × 505,670.39
  4. Step 4: Simplify right side
    913,567.76x = 637,494,300,198.77
  5. Step 5: Solve for x
    x = 637,494,300,198.77/913,567.76
  6. Step 6: Final answer
    x = 697,807.35

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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.