Home / 763,703.02-1,053,910.86-419,561.24

Finding the Fourth Proportional to 763,703.02, 1,053,910.86 and 419,561.24

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Solution

The fourth proportional to 763,703.02, 1,053,910.86 and 419,561.24 is: 578,994.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,703.02 : 1,053,910.86 = 419,561.24 : x
  2. Step 2: Convert to fraction form
    763,703.02/1,053,910.86 = 419,561.24/x
  3. Step 3: Cross multiply
    763,703.02x = 1,053,910.86 × 419,561.24
  4. Step 4: Simplify right side
    763,703.02x = 442,180,147,271.07
  5. Step 5: Solve for x
    x = 442,180,147,271.07/763,703.02
  6. Step 6: Final answer
    x = 578,994.89

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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.