Home / 916,688.28-1,265,262.36-626,417.40

Finding the Fourth Proportional to 916,688.28, 1,265,262.36 and 626,417.40

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Solution

The fourth proportional to 916,688.28, 1,265,262.36 and 626,417.40 is: 864,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,688.28 : 1,265,262.36 = 626,417.40 : x
  2. Step 2: Convert to fraction form
    916,688.28/1,265,262.36 = 626,417.40/x
  3. Step 3: Cross multiply
    916,688.28x = 1,265,262.36 × 626,417.40
  4. Step 4: Simplify right side
    916,688.28x = 792,582,357,869.06
  5. Step 5: Solve for x
    x = 792,582,357,869.06/916,688.28
  6. Step 6: Final answer
    x = 864,614.91

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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.