Home / 979,045.56-1,351,061.47-543,437.30

Finding the Fourth Proportional to 979,045.56, 1,351,061.47 and 543,437.30

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Solution

The fourth proportional to 979,045.56, 1,351,061.47 and 543,437.30 is: 749,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,045.56 : 1,351,061.47 = 543,437.30 : x
  2. Step 2: Convert to fraction form
    979,045.56/1,351,061.47 = 543,437.30/x
  3. Step 3: Cross multiply
    979,045.56x = 1,351,061.47 × 543,437.30
  4. Step 4: Simplify right side
    979,045.56x = 734,217,201,447.78
  5. Step 5: Solve for x
    x = 734,217,201,447.78/979,045.56
  6. Step 6: Final answer
    x = 749,931.60

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Double scale
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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.