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Finding the Fourth Proportional to 615,577.16, 849,510.88 and 386,144.22

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Solution

The fourth proportional to 615,577.16, 849,510.88 and 386,144.22 is: 532,888.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,577.16 : 849,510.88 = 386,144.22 : x
  2. Step 2: Convert to fraction form
    615,577.16/849,510.88 = 386,144.22/x
  3. Step 3: Cross multiply
    615,577.16x = 849,510.88 × 386,144.22
  4. Step 4: Simplify right side
    615,577.16x = 328,033,716,139.11
  5. Step 5: Solve for x
    x = 328,033,716,139.11/615,577.16
  6. Step 6: Final answer
    x = 532,888.06

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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.