Home / 1,225,720.80-1,838,580.96-384,340.32

Finding the Fourth Proportional to 1,225,720.80, 1,838,580.96 and 384,340.32

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Solution

The fourth proportional to 1,225,720.80, 1,838,580.96 and 384,340.32 is: 576,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,720.80 : 1,838,580.96 = 384,340.32 : x
  2. Step 2: Convert to fraction form
    1,225,720.80/1,838,580.96 = 384,340.32/x
  3. Step 3: Cross multiply
    1,225,720.80x = 1,838,580.96 × 384,340.32
  4. Step 4: Simplify right side
    1,225,720.80x = 706,640,794,512.31
  5. Step 5: Solve for x
    x = 706,640,794,512.31/1,225,720.80
  6. Step 6: Final answer
    x = 576,510.40

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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.