Home / 661,985.10-992,705.49-262,570.86

Finding the Fourth Proportional to 661,985.10, 992,705.49 and 262,570.86

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Solution

The fourth proportional to 661,985.10, 992,705.49 and 262,570.86 is: 393,748.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,985.10 : 992,705.49 = 262,570.86 : x
  2. Step 2: Convert to fraction form
    661,985.10/992,705.49 = 262,570.86/x
  3. Step 3: Cross multiply
    661,985.10x = 992,705.49 × 262,570.86
  4. Step 4: Simplify right side
    661,985.10x = 260,655,534,236.02
  5. Step 5: Solve for x
    x = 260,655,534,236.02/661,985.10
  6. Step 6: Final answer
    x = 393,748.34

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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.