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Finding the Fourth Proportional to 356,362.40, 534,543.60 and 353,904.80

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Solution

The fourth proportional to 356,362.40, 534,543.60 and 353,904.80 is: 530,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,362.40 : 534,543.60 = 353,904.80 : x
  2. Step 2: Convert to fraction form
    356,362.40/534,543.60 = 353,904.80/x
  3. Step 3: Cross multiply
    356,362.40x = 534,543.60 × 353,904.80
  4. Step 4: Simplify right side
    356,362.40x = 189,177,545,849.28
  5. Step 5: Solve for x
    x = 189,177,545,849.28/356,362.40
  6. Step 6: Final answer
    x = 530,857.20

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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.