Home / 918,719.75-1,378,263.57-514,486.82

Finding the Fourth Proportional to 918,719.75, 1,378,263.57 and 514,486.82

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Solution

The fourth proportional to 918,719.75, 1,378,263.57 and 514,486.82 is: 771,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,719.75 : 1,378,263.57 = 514,486.82 : x
  2. Step 2: Convert to fraction form
    918,719.75/1,378,263.57 = 514,486.82/x
  3. Step 3: Cross multiply
    918,719.75x = 1,378,263.57 × 514,486.82
  4. Step 4: Simplify right side
    918,719.75x = 709,098,434,359.83
  5. Step 5: Solve for x
    x = 709,098,434,359.83/918,719.75
  6. Step 6: Final answer
    x = 771,833.24

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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.