Home / 1,415,687.90-1,953,679.28-771,106.55

Finding the Fourth Proportional to 1,415,687.90, 1,953,679.28 and 771,106.55

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Solution

The fourth proportional to 1,415,687.90, 1,953,679.28 and 771,106.55 is: 1,064,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,687.90 : 1,953,679.28 = 771,106.55 : x
  2. Step 2: Convert to fraction form
    1,415,687.90/1,953,679.28 = 771,106.55/x
  3. Step 3: Cross multiply
    1,415,687.90x = 1,953,679.28 × 771,106.55
  4. Step 4: Simplify right side
    1,415,687.90x = 1,506,494,875,783.36
  5. Step 5: Solve for x
    x = 1,506,494,875,783.36/1,415,687.90
  6. Step 6: Final answer
    x = 1,064,143.36

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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.