Home / 1,101,528.80-1,655,792.40-1,038,543.20

Finding the Fourth Proportional to 1,101,528.80, 1,655,792.40 and 1,038,543.20

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Solution

The fourth proportional to 1,101,528.80, 1,655,792.40 and 1,038,543.20 is: 1,561,113.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,528.80 : 1,655,792.40 = 1,038,543.20 : x
  2. Step 2: Convert to fraction form
    1,101,528.80/1,655,792.40 = 1,038,543.20/x
  3. Step 3: Cross multiply
    1,101,528.80x = 1,655,792.40 × 1,038,543.20
  4. Step 4: Simplify right side
    1,101,528.80x = 1,719,611,937,631.68
  5. Step 5: Solve for x
    x = 1,719,611,937,631.68/1,101,528.80
  6. Step 6: Final answer
    x = 1,561,113.92

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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.