Home / 489,934.95-734,712.89-190,376.10

Finding the Fourth Proportional to 489,934.95, 734,712.89 and 190,376.10

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Solution

The fourth proportional to 489,934.95, 734,712.89 and 190,376.10 is: 285,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,934.95 : 734,712.89 = 190,376.10 : x
  2. Step 2: Convert to fraction form
    489,934.95/734,712.89 = 190,376.10/x
  3. Step 3: Cross multiply
    489,934.95x = 734,712.89 × 190,376.10
  4. Step 4: Simplify right side
    489,934.95x = 139,871,773,666.05
  5. Step 5: Solve for x
    x = 139,871,773,666.05/489,934.95
  6. Step 6: Final answer
    x = 285,490.50

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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.