Home / 907,083,206.40-1,251,106,510.39-684,074,287.42

Finding the Fourth Proportional to 907,083,206.40, 1,251,106,510.39 and 684,074,287.42

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Solution

The fourth proportional to 907,083,206.40, 1,251,106,510.39 and 684,074,287.42 is: 943,518,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,083,206.40 : 1,251,106,510.39 = 684,074,287.42 : x
  2. Step 2: Convert to fraction form
    907,083,206.40/1,251,106,510.39 = 684,074,287.42/x
  3. Step 3: Cross multiply
    907,083,206.40x = 1,251,106,510.39 × 684,074,287.42
  4. Step 4: Simplify right side
    907,083,206.40x = 855,849,794,583,873,664
  5. Step 5: Solve for x
    x = 855,849,794,583,873,664/907,083,206.40
  6. Step 6: Final answer
    x = 943,518,509.15

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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.