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Finding the Fourth Proportional to 353,927.60, 530,545.80 and 316,602.80

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Solution

The fourth proportional to 353,927.60, 530,545.80 and 316,602.80 is: 474,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,927.60 : 530,545.80 = 316,602.80 : x
  2. Step 2: Convert to fraction form
    353,927.60/530,545.80 = 316,602.80/x
  3. Step 3: Cross multiply
    353,927.60x = 530,545.80 × 316,602.80
  4. Step 4: Simplify right side
    353,927.60x = 167,972,285,808.24
  5. Step 5: Solve for x
    x = 167,972,285,808.24/353,927.60
  6. Step 6: Final answer
    x = 474,595.05

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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.