Home / 921,155.22-1,271,196.84-534,045.90

Finding the Fourth Proportional to 921,155.22, 1,271,196.84 and 534,045.90

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Solution

The fourth proportional to 921,155.22, 1,271,196.84 and 534,045.90 is: 736,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,155.22 : 1,271,196.84 = 534,045.90 : x
  2. Step 2: Convert to fraction form
    921,155.22/1,271,196.84 = 534,045.90/x
  3. Step 3: Cross multiply
    921,155.22x = 1,271,196.84 × 534,045.90
  4. Step 4: Simplify right side
    921,155.22x = 678,877,460,494.96
  5. Step 5: Solve for x
    x = 678,877,460,494.96/921,155.22
  6. Step 6: Final answer
    x = 736,984.87

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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.