Home / 991,526.81-1,368,303.44-561,889.04

Finding the Fourth Proportional to 991,526.81, 1,368,303.44 and 561,889.04

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Solution

The fourth proportional to 991,526.81, 1,368,303.44 and 561,889.04 is: 775,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,526.81 : 1,368,303.44 = 561,889.04 : x
  2. Step 2: Convert to fraction form
    991,526.81/1,368,303.44 = 561,889.04/x
  3. Step 3: Cross multiply
    991,526.81x = 1,368,303.44 × 561,889.04
  4. Step 4: Simplify right side
    991,526.81x = 768,834,696,679.34
  5. Step 5: Solve for x
    x = 768,834,696,679.34/991,526.81
  6. Step 6: Final answer
    x = 775,404.85

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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.