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Finding the Fourth Proportional to 601,985.65, 830,623.20 and 356,925.12

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Solution

The fourth proportional to 601,985.65, 830,623.20 and 356,925.12 is: 492,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,985.65 : 830,623.20 = 356,925.12 : x
  2. Step 2: Convert to fraction form
    601,985.65/830,623.20 = 356,925.12/x
  3. Step 3: Cross multiply
    601,985.65x = 830,623.20 × 356,925.12
  4. Step 4: Simplify right side
    601,985.65x = 296,470,285,334.78
  5. Step 5: Solve for x
    x = 296,470,285,334.78/601,985.65
  6. Step 6: Final answer
    x = 492,487.30

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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.