Home / 912,259.59-1,258,915.10-509,851.59

Finding the Fourth Proportional to 912,259.59, 1,258,915.10 and 509,851.59

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Solution

The fourth proportional to 912,259.59, 1,258,915.10 and 509,851.59 is: 703,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,259.59 : 1,258,915.10 = 509,851.59 : x
  2. Step 2: Convert to fraction form
    912,259.59/1,258,915.10 = 509,851.59/x
  3. Step 3: Cross multiply
    912,259.59x = 1,258,915.10 × 509,851.59
  4. Step 4: Simplify right side
    912,259.59x = 641,859,862,860.75
  5. Step 5: Solve for x
    x = 641,859,862,860.75/912,259.59
  6. Step 6: Final answer
    x = 703,593.44

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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.