Home / 640,225.30-960,386.55-190,911.01

Finding the Fourth Proportional to 640,225.30, 960,386.55 and 190,911.01

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Solution

The fourth proportional to 640,225.30, 960,386.55 and 190,911.01 is: 286,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,225.30 : 960,386.55 = 190,911.01 : x
  2. Step 2: Convert to fraction form
    640,225.30/960,386.55 = 190,911.01/x
  3. Step 3: Cross multiply
    640,225.30x = 960,386.55 × 190,911.01
  4. Step 4: Simplify right side
    640,225.30x = 183,348,366,250.92
  5. Step 5: Solve for x
    x = 183,348,366,250.92/640,225.30
  6. Step 6: Final answer
    x = 286,381.01

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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.