Home / 921,514.40-1,271,600.88-554,098.40

Finding the Fourth Proportional to 921,514.40, 1,271,600.88 and 554,098.40

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Solution

The fourth proportional to 921,514.40, 1,271,600.88 and 554,098.40 is: 764,602.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,514.40 : 1,271,600.88 = 554,098.40 : x
  2. Step 2: Convert to fraction form
    921,514.40/1,271,600.88 = 554,098.40/x
  3. Step 3: Cross multiply
    921,514.40x = 1,271,600.88 × 554,098.40
  4. Step 4: Simplify right side
    921,514.40x = 704,592,013,046.59
  5. Step 5: Solve for x
    x = 704,592,013,046.59/921,514.40
  6. Step 6: Final answer
    x = 764,602.28

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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.