Home / 961,681.53-1,326,798.21-553,774.60

Finding the Fourth Proportional to 961,681.53, 1,326,798.21 and 553,774.60

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Solution

The fourth proportional to 961,681.53, 1,326,798.21 and 553,774.60 is: 764,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,681.53 : 1,326,798.21 = 553,774.60 : x
  2. Step 2: Convert to fraction form
    961,681.53/1,326,798.21 = 553,774.60/x
  3. Step 3: Cross multiply
    961,681.53x = 1,326,798.21 × 553,774.60
  4. Step 4: Simplify right side
    961,681.53x = 734,747,141,180.40
  5. Step 5: Solve for x
    x = 734,747,141,180.40/961,681.53
  6. Step 6: Final answer
    x = 764,023.34

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1.5x scale

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.