Home / 919,659.39-1,379,547.41-288,598.11

Finding the Fourth Proportional to 919,659.39, 1,379,547.41 and 288,598.11

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Solution

The fourth proportional to 919,659.39, 1,379,547.41 and 288,598.11 is: 432,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,659.39 : 1,379,547.41 = 288,598.11 : x
  2. Step 2: Convert to fraction form
    919,659.39/1,379,547.41 = 288,598.11/x
  3. Step 3: Cross multiply
    919,659.39x = 1,379,547.41 × 288,598.11
  4. Step 4: Simplify right side
    919,659.39x = 398,134,773,738.41
  5. Step 5: Solve for x
    x = 398,134,773,738.41/919,659.39
  6. Step 6: Final answer
    x = 432,915.47

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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.