Home / 808,545.80-1,212,041.10-628,531.40

Finding the Fourth Proportional to 808,545.80, 1,212,041.10 and 628,531.40

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Solution

The fourth proportional to 808,545.80, 1,212,041.10 and 628,531.40 is: 942,192.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,545.80 : 1,212,041.10 = 628,531.40 : x
  2. Step 2: Convert to fraction form
    808,545.80/1,212,041.10 = 628,531.40/x
  3. Step 3: Cross multiply
    808,545.80x = 1,212,041.10 × 628,531.40
  4. Step 4: Simplify right side
    808,545.80x = 761,805,889,440.54
  5. Step 5: Solve for x
    x = 761,805,889,440.54/808,545.80
  6. Step 6: Final answer
    x = 942,192.62

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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.