Home / 720,242,760.66-993,386,622.75-619,941,907.82

Finding the Fourth Proportional to 720,242,760.66, 993,386,622.75 and 619,941,907.82

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Solution

The fourth proportional to 720,242,760.66, 993,386,622.75 and 619,941,907.82 is: 855,047,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,242,760.66 : 993,386,622.75 = 619,941,907.82 : x
  2. Step 2: Convert to fraction form
    720,242,760.66/993,386,622.75 = 619,941,907.82/x
  3. Step 3: Cross multiply
    720,242,760.66x = 993,386,622.75 × 619,941,907.82
  4. Step 4: Simplify right side
    720,242,760.66x = 615,841,998,105,534,720
  5. Step 5: Solve for x
    x = 615,841,998,105,534,720/720,242,760.66
  6. Step 6: Final answer
    x = 855,047,814.07

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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.