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Finding the Fourth Proportional to 877,061.16, 1,210,342.02 and 474,653.16

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Solution

The fourth proportional to 877,061.16, 1,210,342.02 and 474,653.16 is: 655,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,061.16 : 1,210,342.02 = 474,653.16 : x
  2. Step 2: Convert to fraction form
    877,061.16/1,210,342.02 = 474,653.16/x
  3. Step 3: Cross multiply
    877,061.16x = 1,210,342.02 × 474,653.16
  4. Step 4: Simplify right side
    877,061.16x = 574,492,664,473.78
  5. Step 5: Solve for x
    x = 574,492,664,473.78/877,061.16
  6. Step 6: Final answer
    x = 655,020.07

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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.