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Finding the Fourth Proportional to 567,492.16, 783,144.36 and 312,852.40

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Solution

The fourth proportional to 567,492.16, 783,144.36 and 312,852.40 is: 431,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,492.16 : 783,144.36 = 312,852.40 : x
  2. Step 2: Convert to fraction form
    567,492.16/783,144.36 = 312,852.40/x
  3. Step 3: Cross multiply
    567,492.16x = 783,144.36 × 312,852.40
  4. Step 4: Simplify right side
    567,492.16x = 245,008,592,572.46
  5. Step 5: Solve for x
    x = 245,008,592,572.46/567,492.16
  6. Step 6: Final answer
    x = 431,739.17

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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.