Home / 943,509.50-1,302,030.20-535,607.78

Finding the Fourth Proportional to 943,509.50, 1,302,030.20 and 535,607.78

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Solution

The fourth proportional to 943,509.50, 1,302,030.20 and 535,607.78 is: 739,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,509.50 : 1,302,030.20 = 535,607.78 : x
  2. Step 2: Convert to fraction form
    943,509.50/1,302,030.20 = 535,607.78/x
  3. Step 3: Cross multiply
    943,509.50x = 1,302,030.20 × 535,607.78
  4. Step 4: Simplify right side
    943,509.50x = 697,377,504,914.96
  5. Step 5: Solve for x
    x = 697,377,504,914.96/943,509.50
  6. Step 6: Final answer
    x = 739,131.41

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Double scale
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1.5x scale

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.