Home / 921,587.12-1,382,568.84-522,406.16

Finding the Fourth Proportional to 921,587.12, 1,382,568.84 and 522,406.16

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Solution

The fourth proportional to 921,587.12, 1,382,568.84 and 522,406.16 is: 783,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,587.12 : 1,382,568.84 = 522,406.16 : x
  2. Step 2: Convert to fraction form
    921,587.12/1,382,568.84 = 522,406.16/x
  3. Step 3: Cross multiply
    921,587.12x = 1,382,568.84 × 522,406.16
  4. Step 4: Simplify right side
    921,587.12x = 722,262,478,640.06
  5. Step 5: Solve for x
    x = 722,262,478,640.06/921,587.12
  6. Step 6: Final answer
    x = 783,715.90

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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.