Home / 926,857.02-1,278,765.45-518,898.90

Finding the Fourth Proportional to 926,857.02, 1,278,765.45 and 518,898.90

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Solution

The fourth proportional to 926,857.02, 1,278,765.45 and 518,898.90 is: 715,914.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,857.02 : 1,278,765.45 = 518,898.90 : x
  2. Step 2: Convert to fraction form
    926,857.02/1,278,765.45 = 518,898.90/x
  3. Step 3: Cross multiply
    926,857.02x = 1,278,765.45 × 518,898.90
  4. Step 4: Simplify right side
    926,857.02x = 663,549,985,363.01
  5. Step 5: Solve for x
    x = 663,549,985,363.01/926,857.02
  6. Step 6: Final answer
    x = 715,914.07

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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.