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Finding the Fourth Proportional to 318,547.11, 439,595.07 and 175,307.15

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Solution

The fourth proportional to 318,547.11, 439,595.07 and 175,307.15 is: 241,923.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,547.11 : 439,595.07 = 175,307.15 : x
  2. Step 2: Convert to fraction form
    318,547.11/439,595.07 = 175,307.15/x
  3. Step 3: Cross multiply
    318,547.11x = 439,595.07 × 175,307.15
  4. Step 4: Simplify right side
    318,547.11x = 77,064,159,317.34
  5. Step 5: Solve for x
    x = 77,064,159,317.34/318,547.11
  6. Step 6: Final answer
    x = 241,923.90

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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.