Home / 720,242,764.92-993,386,628.60-619,941,912.08

Finding the Fourth Proportional to 720,242,764.92, 993,386,628.60 and 619,941,912.08

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Solution

The fourth proportional to 720,242,764.92, 993,386,628.60 and 619,941,912.08 is: 855,047,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,242,764.92 : 993,386,628.60 = 619,941,912.08 : x
  2. Step 2: Convert to fraction form
    720,242,764.92/993,386,628.60 = 619,941,912.08/x
  3. Step 3: Cross multiply
    720,242,764.92x = 993,386,628.60 × 619,941,912.08
  4. Step 4: Simplify right side
    720,242,764.92x = 615,842,005,968,988,928
  5. Step 5: Solve for x
    x = 615,842,005,968,988,928/720,242,764.92
  6. Step 6: Final answer
    x = 855,047,819.94

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Double scale
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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.