Home / 936,500.81-1,292,429.64-528,671.75

Finding the Fourth Proportional to 936,500.81, 1,292,429.64 and 528,671.75

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Solution

The fourth proportional to 936,500.81, 1,292,429.64 and 528,671.75 is: 729,600.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,500.81 : 1,292,429.64 = 528,671.75 : x
  2. Step 2: Convert to fraction form
    936,500.81/1,292,429.64 = 528,671.75/x
  3. Step 3: Cross multiply
    936,500.81x = 1,292,429.64 × 528,671.75
  4. Step 4: Simplify right side
    936,500.81x = 683,271,033,068.52
  5. Step 5: Solve for x
    x = 683,271,033,068.52/936,500.81
  6. Step 6: Final answer
    x = 729,600.05

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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.