Home / 881,285.76-1,216,075.64-499,230.72

Finding the Fourth Proportional to 881,285.76, 1,216,075.64 and 499,230.72

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Solution

The fourth proportional to 881,285.76, 1,216,075.64 and 499,230.72 is: 688,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,285.76 : 1,216,075.64 = 499,230.72 : x
  2. Step 2: Convert to fraction form
    881,285.76/1,216,075.64 = 499,230.72/x
  3. Step 3: Cross multiply
    881,285.76x = 1,216,075.64 × 499,230.72
  4. Step 4: Simplify right side
    881,285.76x = 607,102,317,331.66
  5. Step 5: Solve for x
    x = 607,102,317,331.66/881,285.76
  6. Step 6: Final answer
    x = 688,882.48

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Double scale
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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.