Home / 1,187,000.16-1,779,256.08-438,568.80

Finding the Fourth Proportional to 1,187,000.16, 1,779,256.08 and 438,568.80

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Solution

The fourth proportional to 1,187,000.16, 1,779,256.08 and 438,568.80 is: 657,393.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,000.16 : 1,779,256.08 = 438,568.80 : x
  2. Step 2: Convert to fraction form
    1,187,000.16/1,779,256.08 = 438,568.80/x
  3. Step 3: Cross multiply
    1,187,000.16x = 1,779,256.08 × 438,568.80
  4. Step 4: Simplify right side
    1,187,000.16x = 780,326,203,898.30
  5. Step 5: Solve for x
    x = 780,326,203,898.30/1,187,000.16
  6. Step 6: Final answer
    x = 657,393.51

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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.