Home / 921,521.16-1,271,545.02-513,533.52

Finding the Fourth Proportional to 921,521.16, 1,271,545.02 and 513,533.52

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Solution

The fourth proportional to 921,521.16, 1,271,545.02 and 513,533.52 is: 708,590.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,521.16 : 1,271,545.02 = 513,533.52 : x
  2. Step 2: Convert to fraction form
    921,521.16/1,271,545.02 = 513,533.52/x
  3. Step 3: Cross multiply
    921,521.16x = 1,271,545.02 × 513,533.52
  4. Step 4: Simplify right side
    921,521.16x = 652,980,989,959.07
  5. Step 5: Solve for x
    x = 652,980,989,959.07/921,521.16
  6. Step 6: Final answer
    x = 708,590.34

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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.