Home / 885,323.18-1,221,710.64-522,863.84

Finding the Fourth Proportional to 885,323.18, 1,221,710.64 and 522,863.84

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Solution

The fourth proportional to 885,323.18, 1,221,710.64 and 522,863.84 is: 721,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,323.18 : 1,221,710.64 = 522,863.84 : x
  2. Step 2: Convert to fraction form
    885,323.18/1,221,710.64 = 522,863.84/x
  3. Step 3: Cross multiply
    885,323.18x = 1,221,710.64 × 522,863.84
  4. Step 4: Simplify right side
    885,323.18x = 638,788,316,599.26
  5. Step 5: Solve for x
    x = 638,788,316,599.26/885,323.18
  6. Step 6: Final answer
    x = 721,531.22

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1.5x scale

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.