Home / 887,890.41-1,225,368.81-506,040.21

Finding the Fourth Proportional to 887,890.41, 1,225,368.81 and 506,040.21

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Solution

The fourth proportional to 887,890.41, 1,225,368.81 and 506,040.21 is: 698,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,890.41 : 1,225,368.81 = 506,040.21 : x
  2. Step 2: Convert to fraction form
    887,890.41/1,225,368.81 = 506,040.21/x
  3. Step 3: Cross multiply
    887,890.41x = 1,225,368.81 × 506,040.21
  4. Step 4: Simplify right side
    887,890.41x = 620,085,889,939.85
  5. Step 5: Solve for x
    x = 620,085,889,939.85/887,890.41
  6. Step 6: Final answer
    x = 698,381.11

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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.