Home / 719,918.56-993,127.80-429,325.12

Finding the Fourth Proportional to 719,918.56, 993,127.80 and 429,325.12

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Solution

The fourth proportional to 719,918.56, 993,127.80 and 429,325.12 is: 592,254.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,918.56 : 993,127.80 = 429,325.12 : x
  2. Step 2: Convert to fraction form
    719,918.56/993,127.80 = 429,325.12/x
  3. Step 3: Cross multiply
    719,918.56x = 993,127.80 × 429,325.12
  4. Step 4: Simplify right side
    719,918.56x = 426,374,711,910.34
  5. Step 5: Solve for x
    x = 426,374,711,910.34/719,918.56
  6. Step 6: Final answer
    x = 592,254.09

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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.