Home / 875,849.20-1,312,218.60-543,036.40

Finding the Fourth Proportional to 875,849.20, 1,312,218.60 and 543,036.40

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Solution

The fourth proportional to 875,849.20, 1,312,218.60 and 543,036.40 is: 813,590.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,849.20 : 1,312,218.60 = 543,036.40 : x
  2. Step 2: Convert to fraction form
    875,849.20/1,312,218.60 = 543,036.40/x
  3. Step 3: Cross multiply
    875,849.20x = 1,312,218.60 × 543,036.40
  4. Step 4: Simplify right side
    875,849.20x = 712,582,464,557.04
  5. Step 5: Solve for x
    x = 712,582,464,557.04/875,849.20
  6. Step 6: Final answer
    x = 813,590.36

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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.