Home / 688,051.47-1,031,536.40-434,799.30

Finding the Fourth Proportional to 688,051.47, 1,031,536.40 and 434,799.30

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Solution

The fourth proportional to 688,051.47, 1,031,536.40 and 434,799.30 is: 651,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,051.47 : 1,031,536.40 = 434,799.30 : x
  2. Step 2: Convert to fraction form
    688,051.47/1,031,536.40 = 434,799.30/x
  3. Step 3: Cross multiply
    688,051.47x = 1,031,536.40 × 434,799.30
  4. Step 4: Simplify right side
    688,051.47x = 448,511,302,470.52
  5. Step 5: Solve for x
    x = 448,511,302,470.52/688,051.47
  6. Step 6: Final answer
    x = 651,857.20

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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.