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Finding the Fourth Proportional to 612,545.76, 918,677.70 and 233,509.50

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Solution

The fourth proportional to 612,545.76, 918,677.70 and 233,509.50 is: 350,210.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,545.76 : 918,677.70 = 233,509.50 : x
  2. Step 2: Convert to fraction form
    612,545.76/918,677.70 = 233,509.50/x
  3. Step 3: Cross multiply
    612,545.76x = 918,677.70 × 233,509.50
  4. Step 4: Simplify right side
    612,545.76x = 214,519,970,388.15
  5. Step 5: Solve for x
    x = 214,519,970,388.15/612,545.76
  6. Step 6: Final answer
    x = 350,210.52

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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.