Home / 1,565,699.10-2,160,628.17-921,160.80

Finding the Fourth Proportional to 1,565,699.10, 2,160,628.17 and 921,160.80

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Solution

The fourth proportional to 1,565,699.10, 2,160,628.17 and 921,160.80 is: 1,271,180.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,699.10 : 2,160,628.17 = 921,160.80 : x
  2. Step 2: Convert to fraction form
    1,565,699.10/2,160,628.17 = 921,160.80/x
  3. Step 3: Cross multiply
    1,565,699.10x = 2,160,628.17 × 921,160.80
  4. Step 4: Simplify right side
    1,565,699.10x = 1,990,285,973,579.74
  5. Step 5: Solve for x
    x = 1,990,285,973,579.74/1,565,699.10
  6. Step 6: Final answer
    x = 1,271,180.38

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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.