Home / 678,943.58-936,957.78-373,039.06

Finding the Fourth Proportional to 678,943.58, 936,957.78 and 373,039.06

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Solution

The fourth proportional to 678,943.58, 936,957.78 and 373,039.06 is: 514,802.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,943.58 : 936,957.78 = 373,039.06 : x
  2. Step 2: Convert to fraction form
    678,943.58/936,957.78 = 373,039.06/x
  3. Step 3: Cross multiply
    678,943.58x = 936,957.78 × 373,039.06
  4. Step 4: Simplify right side
    678,943.58x = 349,521,849,510.89
  5. Step 5: Solve for x
    x = 349,521,849,510.89/678,943.58
  6. Step 6: Final answer
    x = 514,802.50

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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.