Home / 864,665.80-1,298,553.90-628,275.40

Finding the Fourth Proportional to 864,665.80, 1,298,553.90 and 628,275.40

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Solution

The fourth proportional to 864,665.80, 1,298,553.90 and 628,275.40 is: 943,543.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,665.80 : 1,298,553.90 = 628,275.40 : x
  2. Step 2: Convert to fraction form
    864,665.80/1,298,553.90 = 628,275.40/x
  3. Step 3: Cross multiply
    864,665.80x = 1,298,553.90 × 628,275.40
  4. Step 4: Simplify right side
    864,665.80x = 815,849,470,944.06
  5. Step 5: Solve for x
    x = 815,849,470,944.06/864,665.80
  6. Step 6: Final answer
    x = 943,543.12

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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.