Home / 1,312,529.40-1,967,627.70-863,465.40

Finding the Fourth Proportional to 1,312,529.40, 1,967,627.70 and 863,465.40

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Solution

The fourth proportional to 1,312,529.40, 1,967,627.70 and 863,465.40 is: 1,294,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,529.40 : 1,967,627.70 = 863,465.40 : x
  2. Step 2: Convert to fraction form
    1,312,529.40/1,967,627.70 = 863,465.40/x
  3. Step 3: Cross multiply
    1,312,529.40x = 1,967,627.70 × 863,465.40
  4. Step 4: Simplify right side
    1,312,529.40x = 1,698,978,439,031.58
  5. Step 5: Solve for x
    x = 1,698,978,439,031.58/1,312,529.40
  6. Step 6: Final answer
    x = 1,294,430.77

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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.