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Finding the Fourth Proportional to 542,848.10, 814,272.15 and 402,880.10

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Solution

The fourth proportional to 542,848.10, 814,272.15 and 402,880.10 is: 604,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,848.10 : 814,272.15 = 402,880.10 : x
  2. Step 2: Convert to fraction form
    542,848.10/814,272.15 = 402,880.10/x
  3. Step 3: Cross multiply
    542,848.10x = 814,272.15 × 402,880.10
  4. Step 4: Simplify right side
    542,848.10x = 328,054,045,219.22
  5. Step 5: Solve for x
    x = 328,054,045,219.22/542,848.10
  6. Step 6: Final answer
    x = 604,320.15

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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.