Home / 1,688,526.85-2,533,263.80-678,358.19

Finding the Fourth Proportional to 1,688,526.85, 2,533,263.80 and 678,358.19

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Solution

The fourth proportional to 1,688,526.85, 2,533,263.80 and 678,358.19 is: 1,017,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,526.85 : 2,533,263.80 = 678,358.19 : x
  2. Step 2: Convert to fraction form
    1,688,526.85/2,533,263.80 = 678,358.19/x
  3. Step 3: Cross multiply
    1,688,526.85x = 2,533,263.80 × 678,358.19
  4. Step 4: Simplify right side
    1,688,526.85x = 1,718,460,253,573.56
  5. Step 5: Solve for x
    x = 1,718,460,253,573.56/1,688,526.85
  6. Step 6: Final answer
    x = 1,017,727.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.