Home / 687,880.17-1,031,277.56-434,626.85

Finding the Fourth Proportional to 687,880.17, 1,031,277.56 and 434,626.85

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Solution

The fourth proportional to 687,880.17, 1,031,277.56 and 434,626.85 is: 651,597.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,880.17 : 1,031,277.56 = 434,626.85 : x
  2. Step 2: Convert to fraction form
    687,880.17/1,031,277.56 = 434,626.85/x
  3. Step 3: Cross multiply
    687,880.17x = 1,031,277.56 × 434,626.85
  4. Step 4: Simplify right side
    687,880.17x = 448,220,918,465.05
  5. Step 5: Solve for x
    x = 448,220,918,465.05/687,880.17
  6. Step 6: Final answer
    x = 651,597.38

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Double scale
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1.5x scale

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.