Home / 1,528,421.00-2,109,242.64-840,156.50

Finding the Fourth Proportional to 1,528,421.00, 2,109,242.64 and 840,156.50

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Solution

The fourth proportional to 1,528,421.00, 2,109,242.64 and 840,156.50 is: 1,159,427.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,421.00 : 2,109,242.64 = 840,156.50 : x
  2. Step 2: Convert to fraction form
    1,528,421.00/2,109,242.64 = 840,156.50/x
  3. Step 3: Cross multiply
    1,528,421.00x = 2,109,242.64 × 840,156.50
  4. Step 4: Simplify right side
    1,528,421.00x = 1,772,093,903,526.95
  5. Step 5: Solve for x
    x = 1,772,093,903,526.95/1,528,421.00
  6. Step 6: Final answer
    x = 1,159,427.87

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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.