Home / 628,868.09-868,377.47-608,532.31

Finding the Fourth Proportional to 628,868.09, 868,377.47 and 608,532.31

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Solution

The fourth proportional to 628,868.09, 868,377.47 and 608,532.31 is: 840,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,868.09 : 868,377.47 = 608,532.31 : x
  2. Step 2: Convert to fraction form
    628,868.09/868,377.47 = 608,532.31/x
  3. Step 3: Cross multiply
    628,868.09x = 868,377.47 × 608,532.31
  4. Step 4: Simplify right side
    628,868.09x = 528,435,740,386.51
  5. Step 5: Solve for x
    x = 528,435,740,386.51/628,868.09
  6. Step 6: Final answer
    x = 840,296.64

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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.