Home / 819,005,681.51-1,226,558,456.88-522,983,879.16

Finding the Fourth Proportional to 819,005,681.51, 1,226,558,456.88 and 522,983,879.16

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Solution

The fourth proportional to 819,005,681.51, 1,226,558,456.88 and 522,983,879.16 is: 783,230,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,005,681.51 : 1,226,558,456.88 = 522,983,879.16 : x
  2. Step 2: Convert to fraction form
    819,005,681.51/1,226,558,456.88 = 522,983,879.16/x
  3. Step 3: Cross multiply
    819,005,681.51x = 1,226,558,456.88 × 522,983,879.16
  4. Step 4: Simplify right side
    819,005,681.51x = 641,470,299,789,473,280
  5. Step 5: Solve for x
    x = 641,470,299,789,473,280/819,005,681.51
  6. Step 6: Final answer
    x = 783,230,585.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.