Home / 905,538.69-1,249,582.98-497,631.77

Finding the Fourth Proportional to 905,538.69, 1,249,582.98 and 497,631.77

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Solution

The fourth proportional to 905,538.69, 1,249,582.98 and 497,631.77 is: 686,698.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,538.69 : 1,249,582.98 = 497,631.77 : x
  2. Step 2: Convert to fraction form
    905,538.69/1,249,582.98 = 497,631.77/x
  3. Step 3: Cross multiply
    905,538.69x = 1,249,582.98 × 497,631.77
  4. Step 4: Simplify right side
    905,538.69x = 621,832,190,403.42
  5. Step 5: Solve for x
    x = 621,832,190,403.42/905,538.69
  6. Step 6: Final answer
    x = 686,698.64

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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.