Home / 637,918.40-956,002.80-519,820.40

Finding the Fourth Proportional to 637,918.40, 956,002.80 and 519,820.40

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Solution

The fourth proportional to 637,918.40, 956,002.80 and 519,820.40 is: 779,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,918.40 : 956,002.80 = 519,820.40 : x
  2. Step 2: Convert to fraction form
    637,918.40/956,002.80 = 519,820.40/x
  3. Step 3: Cross multiply
    637,918.40x = 956,002.80 × 519,820.40
  4. Step 4: Simplify right side
    637,918.40x = 496,949,757,897.12
  5. Step 5: Solve for x
    x = 496,949,757,897.12/637,918.40
  6. Step 6: Final answer
    x = 779,017.75

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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.