Home / 913,295.56-1,260,329-505,397.14

Finding the Fourth Proportional to 913,295.56, 1,260,329 and 505,397.14

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Solution

The fourth proportional to 913,295.56, 1,260,329 and 505,397.14 is: 697,437.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,295.56 : 1,260,329 = 505,397.14 : x
  2. Step 2: Convert to fraction form
    913,295.56/1,260,329 = 505,397.14/x
  3. Step 3: Cross multiply
    913,295.56x = 1,260,329 × 505,397.14
  4. Step 4: Simplify right side
    913,295.56x = 636,966,672,059.06
  5. Step 5: Solve for x
    x = 636,966,672,059.06/913,295.56
  6. Step 6: Final answer
    x = 697,437.61

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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.