Home / 780,127.16-1,170,106.91-529,019.47

Finding the Fourth Proportional to 780,127.16, 1,170,106.91 and 529,019.47

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Solution

The fourth proportional to 780,127.16, 1,170,106.91 and 529,019.47 is: 793,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,127.16 : 1,170,106.91 = 529,019.47 : x
  2. Step 2: Convert to fraction form
    780,127.16/1,170,106.91 = 529,019.47/x
  3. Step 3: Cross multiply
    780,127.16x = 1,170,106.91 × 529,019.47
  4. Step 4: Simplify right side
    780,127.16x = 619,009,328,875.91
  5. Step 5: Solve for x
    x = 619,009,328,875.91/780,127.16
  6. Step 6: Final answer
    x = 793,472.35

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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.