Home / 662,509.51-914,831.47-641,085.79

Finding the Fourth Proportional to 662,509.51, 914,831.47 and 641,085.79

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Solution

The fourth proportional to 662,509.51, 914,831.47 and 641,085.79 is: 885,248.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,509.51 : 914,831.47 = 641,085.79 : x
  2. Step 2: Convert to fraction form
    662,509.51/914,831.47 = 641,085.79/x
  3. Step 3: Cross multiply
    662,509.51x = 914,831.47 × 641,085.79
  4. Step 4: Simplify right side
    662,509.51x = 586,485,455,661.81
  5. Step 5: Solve for x
    x = 586,485,455,661.81/662,509.51
  6. Step 6: Final answer
    x = 885,248.36

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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.