Home / 1,128,035.10-1,556,691-644,599.09

Finding the Fourth Proportional to 1,128,035.10, 1,556,691 and 644,599.09

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Solution

The fourth proportional to 1,128,035.10, 1,556,691 and 644,599.09 is: 889,548.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,035.10 : 1,556,691 = 644,599.09 : x
  2. Step 2: Convert to fraction form
    1,128,035.10/1,556,691 = 644,599.09/x
  3. Step 3: Cross multiply
    1,128,035.10x = 1,556,691 × 644,599.09
  4. Step 4: Simplify right side
    1,128,035.10x = 1,003,441,602,011.19
  5. Step 5: Solve for x
    x = 1,003,441,602,011.19/1,128,035.10
  6. Step 6: Final answer
    x = 889,548.21

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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.