Home / 678,554.10-935,613.54-506,172.82

Finding the Fourth Proportional to 678,554.10, 935,613.54 and 506,172.82

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Solution

The fourth proportional to 678,554.10, 935,613.54 and 506,172.82 is: 697,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,554.10 : 935,613.54 = 506,172.82 : x
  2. Step 2: Convert to fraction form
    678,554.10/935,613.54 = 506,172.82/x
  3. Step 3: Cross multiply
    678,554.10x = 935,613.54 × 506,172.82
  4. Step 4: Simplify right side
    678,554.10x = 473,582,143,971.98
  5. Step 5: Solve for x
    x = 473,582,143,971.98/678,554.10
  6. Step 6: Final answer
    x = 697,928.35

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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.