Home / 1,391,632.07-2,087,774.78-432,038.66

Finding the Fourth Proportional to 1,391,632.07, 2,087,774.78 and 432,038.66

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Solution

The fourth proportional to 1,391,632.07, 2,087,774.78 and 432,038.66 is: 648,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,632.07 : 2,087,774.78 = 432,038.66 : x
  2. Step 2: Convert to fraction form
    1,391,632.07/2,087,774.78 = 432,038.66/x
  3. Step 3: Cross multiply
    1,391,632.07x = 2,087,774.78 × 432,038.66
  4. Step 4: Simplify right side
    1,391,632.07x = 901,999,421,730.52
  5. Step 5: Solve for x
    x = 901,999,421,730.52/1,391,632.07
  6. Step 6: Final answer
    x = 648,159.41

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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.