Home / 691,155.45-953,838.18-419,248.98

Finding the Fourth Proportional to 691,155.45, 953,838.18 and 419,248.98

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Solution

The fourth proportional to 691,155.45, 953,838.18 and 419,248.98 is: 578,590.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,155.45 : 953,838.18 = 419,248.98 : x
  2. Step 2: Convert to fraction form
    691,155.45/953,838.18 = 419,248.98/x
  3. Step 3: Cross multiply
    691,155.45x = 953,838.18 × 419,248.98
  4. Step 4: Simplify right side
    691,155.45x = 399,895,684,050.06
  5. Step 5: Solve for x
    x = 399,895,684,050.06/691,155.45
  6. Step 6: Final answer
    x = 578,590.08

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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.