Home / 864,554.92-1,296,804.68-391,240.28

Finding the Fourth Proportional to 864,554.92, 1,296,804.68 and 391,240.28

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Solution

The fourth proportional to 864,554.92, 1,296,804.68 and 391,240.28 is: 586,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,554.92 : 1,296,804.68 = 391,240.28 : x
  2. Step 2: Convert to fraction form
    864,554.92/1,296,804.68 = 391,240.28/x
  3. Step 3: Cross multiply
    864,554.92x = 1,296,804.68 × 391,240.28
  4. Step 4: Simplify right side
    864,554.92x = 507,362,223,767.67
  5. Step 5: Solve for x
    x = 507,362,223,767.67/864,554.92
  6. Step 6: Final answer
    x = 586,847.88

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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.