Home / 864,030.96-1,295,896.96-390,606.24

Finding the Fourth Proportional to 864,030.96, 1,295,896.96 and 390,606.24

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Solution

The fourth proportional to 864,030.96, 1,295,896.96 and 390,606.24 is: 585,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,030.96 : 1,295,896.96 = 390,606.24 : x
  2. Step 2: Convert to fraction form
    864,030.96/1,295,896.96 = 390,606.24/x
  3. Step 3: Cross multiply
    864,030.96x = 1,295,896.96 × 390,606.24
  4. Step 4: Simplify right side
    864,030.96x = 506,185,438,973.03
  5. Step 5: Solve for x
    x = 506,185,438,973.03/864,030.96
  6. Step 6: Final answer
    x = 585,841.78

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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.