Home / 811,750.17-1,216,460.34-456,015.45

Finding the Fourth Proportional to 811,750.17, 1,216,460.34 and 456,015.45

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Solution

The fourth proportional to 811,750.17, 1,216,460.34 and 456,015.45 is: 683,368.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,750.17 : 1,216,460.34 = 456,015.45 : x
  2. Step 2: Convert to fraction form
    811,750.17/1,216,460.34 = 456,015.45/x
  3. Step 3: Cross multiply
    811,750.17x = 1,216,460.34 × 456,015.45
  4. Step 4: Simplify right side
    811,750.17x = 554,724,709,352.25
  5. Step 5: Solve for x
    x = 554,724,709,352.25/811,750.17
  6. Step 6: Final answer
    x = 683,368.76

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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.