Home / 630,087,815.40-945,131,723.10-545,153,159.40

Finding the Fourth Proportional to 630,087,815.40, 945,131,723.10 and 545,153,159.40

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Solution

The fourth proportional to 630,087,815.40, 945,131,723.10 and 545,153,159.40 is: 817,729,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,087,815.40 : 945,131,723.10 = 545,153,159.40 : x
  2. Step 2: Convert to fraction form
    630,087,815.40/945,131,723.10 = 545,153,159.40/x
  3. Step 3: Cross multiply
    630,087,815.40x = 945,131,723.10 × 545,153,159.40
  4. Step 4: Simplify right side
    630,087,815.40x = 515,241,544,897,130,944
  5. Step 5: Solve for x
    x = 515,241,544,897,130,944/630,087,815.40
  6. Step 6: Final answer
    x = 817,729,739.10

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Double scale
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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.