Home / 540,904.30-811,356.45-292,072.30

Finding the Fourth Proportional to 540,904.30, 811,356.45 and 292,072.30

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Solution

The fourth proportional to 540,904.30, 811,356.45 and 292,072.30 is: 438,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,904.30 : 811,356.45 = 292,072.30 : x
  2. Step 2: Convert to fraction form
    540,904.30/811,356.45 = 292,072.30/x
  3. Step 3: Cross multiply
    540,904.30x = 811,356.45 × 292,072.30
  4. Step 4: Simplify right side
    540,904.30x = 236,974,744,471.34
  5. Step 5: Solve for x
    x = 236,974,744,471.34/540,904.30
  6. Step 6: Final answer
    x = 438,108.45

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Double scale
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Similar ratio
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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.