Home / 817,988.51-1,128,531.92-473,636.45

Finding the Fourth Proportional to 817,988.51, 1,128,531.92 and 473,636.45

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Solution

The fourth proportional to 817,988.51, 1,128,531.92 and 473,636.45 is: 653,449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,988.51 : 1,128,531.92 = 473,636.45 : x
  2. Step 2: Convert to fraction form
    817,988.51/1,128,531.92 = 473,636.45/x
  3. Step 3: Cross multiply
    817,988.51x = 1,128,531.92 × 473,636.45
  4. Step 4: Simplify right side
    817,988.51x = 534,513,844,289.64
  5. Step 5: Solve for x
    x = 534,513,844,289.64/817,988.51
  6. Step 6: Final answer
    x = 653,449.09

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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.