Home / 689,196.47-950,951.76-402,661.20

Finding the Fourth Proportional to 689,196.47, 950,951.76 and 402,661.20

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Solution

The fourth proportional to 689,196.47, 950,951.76 and 402,661.20 is: 555,591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,196.47 : 950,951.76 = 402,661.20 : x
  2. Step 2: Convert to fraction form
    689,196.47/950,951.76 = 402,661.20/x
  3. Step 3: Cross multiply
    689,196.47x = 950,951.76 × 402,661.20
  4. Step 4: Simplify right side
    689,196.47x = 382,911,376,823.71
  5. Step 5: Solve for x
    x = 382,911,376,823.71/689,196.47
  6. Step 6: Final answer
    x = 555,591.03

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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.