Home / 912,644.07-1,259,397.85-499,099.24

Finding the Fourth Proportional to 912,644.07, 1,259,397.85 and 499,099.24

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Solution

The fourth proportional to 912,644.07, 1,259,397.85 and 499,099.24 is: 688,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,644.07 : 1,259,397.85 = 499,099.24 : x
  2. Step 2: Convert to fraction form
    912,644.07/1,259,397.85 = 499,099.24/x
  3. Step 3: Cross multiply
    912,644.07x = 1,259,397.85 × 499,099.24
  4. Step 4: Simplify right side
    912,644.07x = 628,564,509,792.63
  5. Step 5: Solve for x
    x = 628,564,509,792.63/912,644.07
  6. Step 6: Final answer
    x = 688,729.08

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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.