Home / 630,837.12-870,555.96-404,482.56

Finding the Fourth Proportional to 630,837.12, 870,555.96 and 404,482.56

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Solution

The fourth proportional to 630,837.12, 870,555.96 and 404,482.56 is: 558,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,837.12 : 870,555.96 = 404,482.56 : x
  2. Step 2: Convert to fraction form
    630,837.12/870,555.96 = 404,482.56/x
  3. Step 3: Cross multiply
    630,837.12x = 870,555.96 × 404,482.56
  4. Step 4: Simplify right side
    630,837.12x = 352,124,703,324.06
  5. Step 5: Solve for x
    x = 352,124,703,324.06/630,837.12
  6. Step 6: Final answer
    x = 558,186.40

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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.