Home / 1,415,828.30-1,953,833.08-771,248.53

Finding the Fourth Proportional to 1,415,828.30, 1,953,833.08 and 771,248.53

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Solution

The fourth proportional to 1,415,828.30, 1,953,833.08 and 771,248.53 is: 1,064,317.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,828.30 : 1,953,833.08 = 771,248.53 : x
  2. Step 2: Convert to fraction form
    1,415,828.30/1,953,833.08 = 771,248.53/x
  3. Step 3: Cross multiply
    1,415,828.30x = 1,953,833.08 × 771,248.53
  4. Step 4: Simplify right side
    1,415,828.30x = 1,506,890,890,815.37
  5. Step 5: Solve for x
    x = 1,506,890,890,815.37/1,415,828.30
  6. Step 6: Final answer
    x = 1,064,317.54

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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.