Home / 819,546.34-1,227,001.28-434,417.67

Finding the Fourth Proportional to 819,546.34, 1,227,001.28 and 434,417.67

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Solution

The fourth proportional to 819,546.34, 1,227,001.28 and 434,417.67 is: 650,397.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,546.34 : 1,227,001.28 = 434,417.67 : x
  2. Step 2: Convert to fraction form
    819,546.34/1,227,001.28 = 434,417.67/x
  3. Step 3: Cross multiply
    819,546.34x = 1,227,001.28 × 434,417.67
  4. Step 4: Simplify right side
    819,546.34x = 533,031,032,095.66
  5. Step 5: Solve for x
    x = 533,031,032,095.66/819,546.34
  6. Step 6: Final answer
    x = 650,397.67

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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.