Home / 1,564,543.75-2,158,823.75-911,277.28

Finding the Fourth Proportional to 1,564,543.75, 2,158,823.75 and 911,277.28

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Solution

The fourth proportional to 1,564,543.75, 2,158,823.75 and 911,277.28 is: 1,257,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,543.75 : 2,158,823.75 = 911,277.28 : x
  2. Step 2: Convert to fraction form
    1,564,543.75/2,158,823.75 = 911,277.28/x
  3. Step 3: Cross multiply
    1,564,543.75x = 2,158,823.75 × 911,277.28
  4. Step 4: Simplify right side
    1,564,543.75x = 1,967,287,037,290.35
  5. Step 5: Solve for x
    x = 1,967,287,037,290.35/1,564,543.75
  6. Step 6: Final answer
    x = 1,257,419.00

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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.