Home / 1,187,002.16-1,779,259.08-438,570.80

Finding the Fourth Proportional to 1,187,002.16, 1,779,259.08 and 438,570.80

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Solution

The fourth proportional to 1,187,002.16, 1,779,259.08 and 438,570.80 is: 657,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,002.16 : 1,779,259.08 = 438,570.80 : x
  2. Step 2: Convert to fraction form
    1,187,002.16/1,779,259.08 = 438,570.80/x
  3. Step 3: Cross multiply
    1,187,002.16x = 1,779,259.08 × 438,570.80
  4. Step 4: Simplify right side
    1,187,002.16x = 780,331,078,122.86
  5. Step 5: Solve for x
    x = 780,331,078,122.86/1,187,002.16
  6. Step 6: Final answer
    x = 657,396.51

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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.