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Finding the Fourth Proportional to 356,543.60, 534,815.40 and 277,228.40

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Solution

The fourth proportional to 356,543.60, 534,815.40 and 277,228.40 is: 415,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,543.60 : 534,815.40 = 277,228.40 : x
  2. Step 2: Convert to fraction form
    356,543.60/534,815.40 = 277,228.40/x
  3. Step 3: Cross multiply
    356,543.60x = 534,815.40 × 277,228.40
  4. Step 4: Simplify right side
    356,543.60x = 148,266,017,637.36
  5. Step 5: Solve for x
    x = 148,266,017,637.36/356,543.60
  6. Step 6: Final answer
    x = 415,842.60

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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.