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Finding the Fourth Proportional to 571,088.58, 788,090.48 and 316,437.54

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Solution

The fourth proportional to 571,088.58, 788,090.48 and 316,437.54 is: 436,677.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,088.58 : 788,090.48 = 316,437.54 : x
  2. Step 2: Convert to fraction form
    571,088.58/788,090.48 = 316,437.54/x
  3. Step 3: Cross multiply
    571,088.58x = 788,090.48 × 316,437.54
  4. Step 4: Simplify right side
    571,088.58x = 249,381,412,788.62
  5. Step 5: Solve for x
    x = 249,381,412,788.62/571,088.58
  6. Step 6: Final answer
    x = 436,677.29

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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.