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Finding the Fourth Proportional to 556,931.31, 768,555.59 and 302,277.03

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Solution

The fourth proportional to 556,931.31, 768,555.59 and 302,277.03 is: 417,137.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,931.31 : 768,555.59 = 302,277.03 : x
  2. Step 2: Convert to fraction form
    556,931.31/768,555.59 = 302,277.03/x
  3. Step 3: Cross multiply
    556,931.31x = 768,555.59 × 302,277.03
  4. Step 4: Simplify right side
    556,931.31x = 232,316,699,623.71
  5. Step 5: Solve for x
    x = 232,316,699,623.71/556,931.31
  6. Step 6: Final answer
    x = 417,137.08

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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.