Home / 761,101.18-1,050,234.87-421,484.38

Finding the Fourth Proportional to 761,101.18, 1,050,234.87 and 421,484.38

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Solution

The fourth proportional to 761,101.18, 1,050,234.87 and 421,484.38 is: 581,601.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,101.18 : 1,050,234.87 = 421,484.38 : x
  2. Step 2: Convert to fraction form
    761,101.18/1,050,234.87 = 421,484.38/x
  3. Step 3: Cross multiply
    761,101.18x = 1,050,234.87 × 421,484.38
  4. Step 4: Simplify right side
    761,101.18x = 442,657,593,036.33
  5. Step 5: Solve for x
    x = 442,657,593,036.33/761,101.18
  6. Step 6: Final answer
    x = 581,601.51

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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.