Home / 916,569.12-1,375,005.96-384,130.20

Finding the Fourth Proportional to 916,569.12, 1,375,005.96 and 384,130.20

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Solution

The fourth proportional to 916,569.12, 1,375,005.96 and 384,130.20 is: 576,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,569.12 : 1,375,005.96 = 384,130.20 : x
  2. Step 2: Convert to fraction form
    916,569.12/1,375,005.96 = 384,130.20/x
  3. Step 3: Cross multiply
    916,569.12x = 1,375,005.96 × 384,130.20
  4. Step 4: Simplify right side
    916,569.12x = 528,181,314,415.99
  5. Step 5: Solve for x
    x = 528,181,314,415.99/916,569.12
  6. Step 6: Final answer
    x = 576,259.12

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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.