Home / 1,185,812.50-1,636,421.80-641,948.28

Finding the Fourth Proportional to 1,185,812.50, 1,636,421.80 and 641,948.28

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Solution

The fourth proportional to 1,185,812.50, 1,636,421.80 and 641,948.28 is: 885,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,812.50 : 1,636,421.80 = 641,948.28 : x
  2. Step 2: Convert to fraction form
    1,185,812.50/1,636,421.80 = 641,948.28/x
  3. Step 3: Cross multiply
    1,185,812.50x = 1,636,421.80 × 641,948.28
  4. Step 4: Simplify right side
    1,185,812.50x = 1,050,498,158,259.63
  5. Step 5: Solve for x
    x = 1,050,498,158,259.63/1,185,812.50
  6. Step 6: Final answer
    x = 885,888.92

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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.