Home / 1,152,985.60-1,591,116.08-643,683.52

Finding the Fourth Proportional to 1,152,985.60, 1,591,116.08 and 643,683.52

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Solution

The fourth proportional to 1,152,985.60, 1,591,116.08 and 643,683.52 is: 888,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,985.60 : 1,591,116.08 = 643,683.52 : x
  2. Step 2: Convert to fraction form
    1,152,985.60/1,591,116.08 = 643,683.52/x
  3. Step 3: Cross multiply
    1,152,985.60x = 1,591,116.08 × 643,683.52
  4. Step 4: Simplify right side
    1,152,985.60x = 1,024,175,199,103.00
  5. Step 5: Solve for x
    x = 1,024,175,199,103.00/1,152,985.60
  6. Step 6: Final answer
    x = 888,281.00

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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.