Home / 811,740.33-1,217,235.18-456,754.32

Finding the Fourth Proportional to 811,740.33, 1,217,235.18 and 456,754.32

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Solution

The fourth proportional to 811,740.33, 1,217,235.18 and 456,754.32 is: 684,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,740.33 : 1,217,235.18 = 456,754.32 : x
  2. Step 2: Convert to fraction form
    811,740.33/1,217,235.18 = 456,754.32/x
  3. Step 3: Cross multiply
    811,740.33x = 1,217,235.18 × 456,754.32
  4. Step 4: Simplify right side
    811,740.33x = 555,977,426,920.98
  5. Step 5: Solve for x
    x = 555,977,426,920.98/811,740.33
  6. Step 6: Final answer
    x = 684,920.30

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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.