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Finding the Fourth Proportional to 991,527, 1,368,423.90 and 589,119

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Solution

The fourth proportional to 991,527, 1,368,423.90 and 589,119 is: 813,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,527 : 1,368,423.90 = 589,119 : x
  2. Step 2: Convert to fraction form
    991,527/1,368,423.90 = 589,119/x
  3. Step 3: Cross multiply
    991,527x = 1,368,423.90 × 589,119
  4. Step 4: Simplify right side
    991,527x = 806,164,519,544.10
  5. Step 5: Solve for x
    x = 806,164,519,544.10/991,527
  6. Step 6: Final answer
    x = 813,053.52

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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.