Home / 1,865,475.78-2,798,215.02-517,639.74

Finding the Fourth Proportional to 1,865,475.78, 2,798,215.02 and 517,639.74

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Solution

The fourth proportional to 1,865,475.78, 2,798,215.02 and 517,639.74 is: 776,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,475.78 : 2,798,215.02 = 517,639.74 : x
  2. Step 2: Convert to fraction form
    1,865,475.78/2,798,215.02 = 517,639.74/x
  3. Step 3: Cross multiply
    1,865,475.78x = 2,798,215.02 × 517,639.74
  4. Step 4: Simplify right side
    1,865,475.78x = 1,448,467,295,416.89
  5. Step 5: Solve for x
    x = 1,448,467,295,416.89/1,865,475.78
  6. Step 6: Final answer
    x = 776,459.98

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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.